Upgrade GitHub Actions to version 5

Author: ViralBShah

.github/workflows/CI.yml

@@ -30,8 +30,8 @@ jobs:
           - os: windows-latest
             julia_copy_stacks: 0
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-java@v4
+      - uses: actions/checkout@v5
+      - uses: actions/setup-java@v5
         with:
           distribution: 'zulu'
           java-version: '17'