Upgrade CodeQL action from v3 to v4

Author: leogdion

.github/workflows/codeql.yml

@@ -57,9 +57,12 @@ jobs:
         swift --version
         swift package --version
 
+    - name: Ensure remote dependencies
+      run: ./Scripts/ensure-remote-deps.sh
+      
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v3
+      uses: github/codeql-action/init@v4
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.