Use non-deprecated versions

Author: simeg

.github/workflows/links.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Find markdown files
         shell: bash

.github/workflows/test.yml

@@ -10,18 +10,18 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Set up node
-        uses: actions/setup-node@v2-beta
+        uses: actions/setup-node@v3
         with:
-          node-version: '13'
+          node-version: '14'
 
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
         run: echo "::set-output name=dir::$(yarn cache dir)"
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         id: yarn-cache
         with:
           path: ${{ steps.yarn-cache-dir-path.outputs.dir }}