Bump actions/checkout from 5 to 6 (#126)

Author: dependabot[bot]

.github/workflows/ping-servers.yml

@@ -18,7 +18,7 @@ jobs:
       # Prepare the working dir
       - name: Clear any existing files
         run: rm -rf *
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           token: ${{ secrets.PAT }}
 

.github/workflows/validate-and-build-index.yml

@@ -16,7 +16,7 @@ jobs:
       # Prepare the working dir
       - name: Clear any existing files
         run: rm -rf *
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           token: ${{ secrets.PAT }}
 

.github/workflows/validate.yml

@@ -16,7 +16,7 @@ jobs:
       # Prepare the working dir
       - name: Clear any existing files
         run: rm -rf *
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       # Install Python
       - name: Setup Python 3.9