Update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/codeql.yml

@@ -38,7 +38,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL