update codeql and ignore contrib code

Update the CodeQL workflow to use newer versions of the actions.
Configure it to directly check out the correct commit. And configure it
to ignore the contrib-modules directory.

.github/workflows/codeql-analysis.yml

@@ -12,20 +12,19 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
-          # We must fetch at least the immediate parents so that if this is
-          # a pull request then we can checkout the head.
-          fetch-depth: 2
-
-      # If this run was triggered by a pull request event, then checkout
-      # the head of the pull request instead of the merge commit.
-      - run: git checkout HEAD^2
-        if: ${{ github.event_name == 'pull_request' }}
+          # If this run was triggered by a pull request event, then checkout
+          # the head of the pull request instead of the merge commit.
+          ref: ${{ ( github.event_name == 'pull_request' && github.event.pull_request.head.sha ) || github.context.ref }}
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v2
+        uses: github/codeql-action/init@v3
+        with:
+          config: |
+            paths-ignore:
+              - contrib-modules
         # Override language selection by uncommenting this and choosing your
         # languages with:
         #   languages: go, javascript, csharp, python, cpp, java
@@ -34,7 +33,7 @@ jobs:
       # Java). If this step fails, then you should remove it and run the build
       # manually (see below)
       - name: Autobuild
-        uses: github/codeql-action/autobuild@v2
+        uses: github/codeql-action/autobuild@v3
 
       # ℹ️ Command-line programs to run using the OS shell.
       # 📚 https://git.io/JvXDl
@@ -48,4 +47,4 @@ jobs:
       #   make release
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v2
+        uses: github/codeql-action/analyze@v3