add CodeQL pipeline (#617)

.github/codeql/codeql-config.yml

@@ -0,0 +1,6 @@
+paths:
+  - src/cli
+  - src/agent
+  - src/pytypes
+  - src/deployment
+  - src/api-service/__app__

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,34 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ main ]
+  schedule:
+    - cron: '29 3 * * 0'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'python' ]
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      with:
+        languages: ${{ matrix.language }}
+        config-file: ./.github/codeql/codeql-config.yml
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1