Merge pull request #15955 from nestjs/renovate/actions-checkout-6.x

chore(deps): update actions/checkout action to v6

Author: kamilmysliwiec

.github/workflows/codeql-analysis.yml

@@ -21,7 +21,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         # We must fetch at least the immediate parents so that if this is
         # a pull request then we can checkout the head.