Update actions/checkout action to v7

Author: renovate[bot]

.github/workflows/blank.yml

@@ -21,7 +21,7 @@ jobs:
             name: "Build AppImage"
             arch: aarch64
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v7
 
     - name: Make AppImage
       run: |
@@ -83,7 +83,7 @@ jobs:
             files: |
               *.AppImage*
 
-        - uses: actions/checkout@v4
+        - uses: actions/checkout@v7
         - name: Update LATEST_VERSION
           run: |
             echo "${{ env.VERSION }}" > ./LATEST_VERSION