Bump actions/checkout from 3 to 4

.github/workflows/checks.yaml

@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Cache
         uses: actions/cache@v3

.github/workflows/publish.yaml

@@ -36,7 +36,7 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Cache
         uses: actions/cache@v3

.github/workflows/size-label.yml

@@ -12,7 +12,7 @@ jobs:
           sudo apt-get update
           sudo apt-get install -y jq
       - name: Size label
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
       - name: Calculate size