Run CodeQL security analysis on schedule and push

.github/workflows/codeql.yaml

@@ -0,0 +1,29 @@
+name: CodeQL
+
+on:
+  pull_request:
+    branches:
+      - main
+  push:
+    branches:
+      - main
+  schedule:
+    - cron: '10 18 * * 2'
+
+jobs:
+  analyze:
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with: { go-version: stable }
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with: { languages: go, build-mode: autobuild }
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3