Add codeQL action

Author: Alex-Welsh

.github/workflows/codeql.yml

@@ -0,0 +1,39 @@
+---
+name: "CodeQL Advanced"
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+  schedule:
+    - cron: '42 10 * * 4'
+
+jobs:
+  analyze:
+    name: Analyze (${{ matrix.language }})
+    runs-on:  ubuntu-latest
+    permissions:
+      security-events: write
+      packages: read
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+        - language: actions
+        - language: python
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v3
+      with:
+        languages: ${{ matrix.language }}
+        build-mode: none
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v3
+      with:
+        category: "/language:${{matrix.language}}"