chore(ci): remove CodeQL workflow

.github/workflows/codeql.yml

@@ -1,38 +0,0 @@
----
-name: "CodeQL"
-
-on:
-  push:
-    branches: ["master", "main"]
-  pull_request:
-    branches: ["master", "main"]
-  schedule:
-    - cron: "0 6 * * 1"   # Mondays 06:00 UTC
-
-permissions:
-  contents: read
-  security-events: write
-
-jobs:
-  analyze:
-    name: Analyze (CodeQL)
-    runs-on: ubuntu-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        language: ["javascript"]  # add more if needed: "python", "go", etc.
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Initialize CodeQL
-        uses: github/codeql-action/init@v3
-        with:
-          languages: ${{ matrix.language }}
-          config-file: .github/codeql/codeql-config.yml
-          queries: +security-extended
-
-      - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v3