add codeql scans

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,58 @@
+# https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning
+name: "CodeQL"
+
+on:
+  push:
+    branches:
+    - '**'
+    tags-ignore:
+    - '**'
+    paths-ignore:
+    - '**/*.md'
+  pull_request:
+    paths-ignore:
+    - '**/*.md'
+  schedule:
+    - cron: '10 10 * * 1'
+  workflow_dispatch:
+    # https://github.blog/changelog/2020-07-06-github-actions-manual-triggers-with-workflow_dispatch/
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+
+    steps:
+    - name: Git Checkout
+      uses: actions/checkout@v2 #https://github.com/actions/checkout
+
+    - uses: actions/setup-python@v2
+      with:
+        python-version: "3.10"
+
+    - name: Install python dependencies
+      run: |
+         set -eux
+
+         python --version
+
+         pip install .[dev]
+         
+         # Set the `CODEQL-PYTHON` environment variable to the Python executable
+         # that includes the dependencies
+         echo "CODEQL_PYTHON=$(which python)" >> $GITHUB_ENV
+
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      with:
+        languages: python
+        setup-python-dependencies: false
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1 # https://github.com/github/codeql-action