PYTHON-4384 Add Custom CodeQL Scanning

.github/workflows/codeql.yml

@@ -0,0 +1,62 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ "master", "v*"]
+    tags: ['*']
+  pull_request:
+  schedule:
+    - cron: '17 10 * * 2'
+
+concurrency:
+  group: codeql-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  analyze:
+    name: Analyze (${{ matrix.language }})
+    runs-on: "ubuntu-latest"
+    timeout-minutes: 360
+    permissions:
+      # required for all workflows
+      security-events: write
+
+      # required to fetch internal or private CodeQL packs
+      packages: read
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+        - language: c-cpp
+          build-mode: manual
+        - language: python
+          build-mode: none
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+    - uses: actions/setup-python@v3
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v3
+      with:
+        languages: ${{ matrix.language }}
+        build-mode: ${{ matrix.build-mode }}
+        # For more details on CodeQL's query packs, refer to: https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
+        queries: security-extended
+        config: |
+          paths-ignore:
+            - '.github/**'
+            - 'doc/**'
+            - 'tools/**'
+            - 'test/**'
+
+    - if: matrix.build-mode == 'manual'
+      run: |
+        pip install -e .
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v3
+      with:
+        category: "/language:${{matrix.language}}"