chore: Bump actions/download-artifact from 5 to 6

.github/workflows/java.yml

@@ -208,7 +208,7 @@ jobs:
           fetch-depth: 0
           persist-credentials: false
           submodules: recursive
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           path: artifacts
           pattern: jni-artifacts-*

.github/workflows/native-unix.yml

@@ -357,7 +357,7 @@ jobs:
         run: |
           sudo sysctl vm.mmap_rnd_bits=28
 
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: driver-manager-${{ matrix.os }}
           path: "~"
@@ -506,7 +506,7 @@ jobs:
         if: matrix.os == 'ubuntu-latest'
         run: go install honnef.co/go/tools/cmd/staticcheck@latest
 
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: driver-manager-${{ matrix.os }}
           path: "~"
@@ -588,7 +588,7 @@ jobs:
           cache: true
           cache-dependency-path: go/adbc/go.sum
 
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: driver-manager-${{ matrix.os }}
           path: "~"
@@ -699,7 +699,7 @@ jobs:
         run: |
           sudo sysctl vm.mmap_rnd_bits=28
 
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: driver-manager-${{ matrix.os }}
           path: "~"

.github/workflows/native-windows.yml

@@ -224,7 +224,7 @@ jobs:
           cache: true
           cache-dependency-path: go/adbc/go.sum
 
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: driver-manager-${{ matrix.os }}
           path: ${{ github.workspace }}/build
@@ -284,7 +284,7 @@ jobs:
             --file ci\conda_env_cpp.txt `
             --file ci\conda_env_python.txt
 
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: driver-manager-${{ matrix.os }}
           path: ${{ github.workspace }}/build

.github/workflows/nightly-verify.yml

@@ -130,7 +130,7 @@ jobs:
                       grep -E -o '[0-9]+\.[0-9]+\.[0-9]+')
           echo "VERSION=${VERSION}" >> $GITHUB_ENV
 
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: source
           path: ${{ github.workspace }}/apache-arrow-adbc-${{ env.VERSION }}-rc0/

.github/workflows/nightly-website.yml

@@ -74,7 +74,7 @@ jobs:
           path: scripts
           persist-credentials: false
       - name: Download docs
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: docs
           path: temp

.github/workflows/packaging.yml

@@ -103,7 +103,7 @@ jobs:
         os: ["ubuntu-latest", "windows-latest", "macos-15-intel"]
 
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: source
 
@@ -152,7 +152,7 @@ jobs:
       - go-binaries
 
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: source
 
@@ -172,7 +172,7 @@ jobs:
           echo "schedule: ${{ github.event.schedule }}" >> $GITHUB_STEP_SUMMARY
           echo "ref: ${{ github.ref }}" >> $GITHUB_STEP_SUMMARY
 
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           pattern: go-*
           path: adbc/go/adbc/pkg
@@ -207,7 +207,7 @@ jobs:
     needs:
       - source
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: source
 
@@ -263,7 +263,7 @@ jobs:
           - { os: Windows, arch: amd64, runner: windows-latest }
 
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: source
       - name: Extract source archive
@@ -310,11 +310,11 @@ jobs:
       - source
       - java-jni
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: source
 
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           path: artifacts
           pattern: jni-artifacts-*
@@ -377,7 +377,7 @@ jobs:
           - ubuntu-jammy
           - ubuntu-noble
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: source
 
@@ -507,7 +507,7 @@ jobs:
         # TODO: "linux_aarch64_"
         arch: ["linux_64_"]
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: source
 
@@ -573,7 +573,7 @@ jobs:
       run:
         shell: bash -l -eo pipefail {0}
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: source
 
@@ -644,7 +644,7 @@ jobs:
             platform: "linux/arm64/v8"
             runs_on: "ubuntu-24.04-arm"
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: source
 
@@ -764,7 +764,7 @@ jobs:
       # Where to install vcpkg
       VCPKG_ROOT: "${{ github.workspace }}/vcpkg"
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: source
 
@@ -939,7 +939,7 @@ jobs:
       # Where to install vcpkg
       VCPKG_ROOT: "${{ github.workspace }}\\vcpkg"
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: source
 
@@ -1041,7 +1041,7 @@ jobs:
     needs:
       - source
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: source
 
@@ -1106,7 +1106,7 @@ jobs:
       - python-sdist
     steps:
       - name: Get All Artifacts
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           path: release-artifacts
       - name: Release
@@ -1165,7 +1165,7 @@ jobs:
           persist-credentials: true
           submodules: recursive
       - name: Get All Artifacts
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           path: conda-packages
       - uses: conda-incubator/setup-miniconda@835234971496cad1653abb28a638a281cf32541f  # v3.2.0
@@ -1228,7 +1228,7 @@ jobs:
           persist-credentials: true
           submodules: recursive
       - name: Get All Artifacts
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           path: nightly-artifacts
       - name: Upload