test: add a CodeQL runner

Let's see what it finds.

Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>

.github/workflows/codeql.yaml

@@ -0,0 +1,40 @@
+name: "CodeQL Advanced"
+
+on:
+  push:
+    branches: [ "main", "release-*" ]
+  pull_request:
+    branches: [ "main", "release-*" ]
+  schedule:
+    - cron: '23 3 * * 3'
+
+jobs:
+  analyze:
+    if: (!startsWith(github.head_ref, 'renovate/') && !startsWith(github.head_ref, 'dependabot/'))
+    name: Analyze (${{ matrix.language }})
+    runs-on:
+      - self-hosted
+      - talos
+    permissions:
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+        - language: go
+          build-mode: autobuild
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v3
+      with:
+        languages: ${{ matrix.language }}
+        build-mode: ${{ matrix.build-mode }}
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v3
+      with:
+        category: "/language:${{matrix.language}}"