setup: change to reusable github workflows

* move check_manifest configuration to setup.cfg

* remove upper constraint for pytest-black

.github/workflows/tests.yml

@@ -16,51 +16,5 @@ on:
         default: 'Manual trigger'
 
 jobs:
-  Tests:
-    runs-on: ubuntu-20.04
-    strategy:
-      matrix:
-          python-version: [3.8, 3.9]
-          requirements-level: [pypi]
-          db-service: [postgresql13]
-          search-service: [opensearch2]
-          include:
-          - db-service: postgresql13
-            DB_EXTRAS: "postgresql"
-
-          - search-service: opensearch2
-            SEARCH_EXTRAS: "opensearch2"
-
-    env:
-      DB: ${{ matrix.db-service }}
-      SEARCH: ${{ matrix.search-service }}
-      EXTRAS: tests,${{ matrix.SEARCH_EXTRAS }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
-        with:
-          python-version: ${{ matrix.python-version }}
-
-      - name: Generate dependencies
-        run: |
-          pip install wheel requirements-builder
-          requirements-builder -e "$EXTRAS" --level=${{ matrix.requirements-level }} setup.py > .${{ matrix.requirements-level }}-${{ matrix.python-version }}-requirements.txt
-      - name: Cache pip
-        uses: actions/cache@v2
-        with:
-          path: ~/.cache/pip
-          key: ${{ runner.os }}-pip-${{ hashFiles('.${{ matrix.requirements-level }}-${{ matrix.python-version }}-requirements.txt') }}
-
-      - name: Install dependencies
-        run: |
-          pip install -r .${{ matrix.requirements-level }}-${{ matrix.python-version }}-requirements.txt
-          pip install ".[$EXTRAS]"
-          pip freeze
-          docker --version
-          docker-compose --version
-      - name: Run tests
-        run: |
-          ./run-tests.sh
+  tests:
+    uses: tu-graz-library/.github/.github/workflows/tests.yml@main