Update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/blank.yml

@@ -23,7 +23,7 @@ jobs:
 #            arch: aarch64
     container: ghcr.io/pkgforge-dev/archlinux:latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           persist-credentials: false
 
@@ -92,7 +92,7 @@ jobs:
             *.AppImage*
             *.AppBundle*
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Update LATEST_VERSION
         run: |
           echo "${{ env.VERSION }}" > ./LATEST_VERSION