Update validate-manifest.yml

.github/workflows/validate-manifest.yml

@@ -24,7 +24,7 @@ jobs:
   validation:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: true
 
@@ -37,7 +37,7 @@ jobs:
     needs: [validation]
     if: failure()
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: true