chore: remove dependency audit workflow

.github/workflows/dependency-audit.yml

@@ -1,40 +0,0 @@
-name: Dependency Audit
-
-on:
-  push:
-    branches: [main, dev]
-  pull_request:
-    branches: [main, dev]
-  schedule:
-    - cron: "0 8 1 * *"
-
-permissions:
-  contents: read
-  security-events: write
-
-jobs:
-  pip-audit:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-python@v5
-        with:
-          python-version: "3.13"
-
-      - name: Install system deps for pycairo
-        run: sudo apt-get install -y libcairo2-dev pkg-config
-
-      - name: Install uv
-        uses: astral-sh/setup-uv@v4
-
-      - name: Export requirements from uv
-        run: uv export --no-hashes -o requirements-audit.txt
-
-      - uses: pypa/gh-action-pip-audit@v1.1.0
-        with:
-          inputs: requirements-audit.txt
-
-      - name: Cleanup
-        if: always()
-        run: rm -f requirements-audit.txt