ci: Reuse workflow for lint

.github/workflows/lint.yml

@@ -1,23 +1,7 @@
 name: Lint
 on: [push, pull_request]
-env:
-  BASEDIR: https://raw.githubusercontent.com/open-contracting/standard-maintenance-scripts/main
 jobs:
-  build:
-    if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name != github.repository
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
-        with:
-          python-version: '3.10'
-          cache: pip
-          cache-dependency-path: pyproject.toml
-      - shell: bash
-        run: curl -s -S --retry 3 $BASEDIR/tests/install.sh | bash -
-      - shell: bash
-        run: curl -s -S --retry 3 $BASEDIR/tests/script.sh | bash -
-      - run: pip install .[test]
-      - run: pytest /tmp/test_requirements.py
-      - run: pip install --upgrade check-manifest
-      - run: check-manifest
+  lint:
+    uses: open-contracting/.github/.github/workflows/lint.yml@main
+    with:
+      python-version: '3.10'