ci(codeql.yml): set version v3 to actions/checkout

Author: gr2m

.github/workflows/codeql.yml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # tag=v3
+      uses: actions/checkout@v3 # tag=v3
       with:
         # We must fetch at least the immediate parents so that if this is
         # a pull request then we can checkout the head.