build: add codeql (#405)

Author: anonrig

.github/workflows/codeql.yml

@@ -0,0 +1,47 @@
+name: "CodeQL"
+
+on:
+  schedule:
+    - cron: '0 0 * * 1'
+
+permissions:
+  contents: read
+  security-events: write
+  pull-requests: read
+  actions: read
+
+jobs:
+  analyze:
+    name: Analyze
+    
+    runs-on: ubuntu-latest
+    
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'cpp', 'python' ]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0
+
+      # Initializes the CodeQL tools for scanning.
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@32dc499307d133bb5085bae78498c0ac2cf762d5 # v2.2.5
+        with:
+          languages: ${{ matrix.language }}
+
+      # Autobuild attempts to build any compiled languages  (C/C++, C#, Go, or Java).
+      # If this step fails, then you should remove it and run the build manually (see below)
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@32dc499307d133bb5085bae78498c0ac2cf762d5 # v2.2.5
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@32dc499307d133bb5085bae78498c0ac2cf762d5 # v2.2.5
+        with:
+          category: "/language:${{matrix.language}}"