diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 7b761ab..137bebb 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -3,16 +3,16 @@ name: tests
 on:
   push:
     paths-ignore:
-      - 'README.md'
-      - 'LICENSE'
-      - '.gitignore'
+      - "README.md"
+      - "LICENSE"
+      - ".gitignore"
     branches:
       - main
   pull_request:
     paths-ignore:
-      - 'README.md'
-      - 'LICENSE'
-      - '.gitignore'
+      - "README.md"
+      - "LICENSE"
+      - ".gitignore"
     branches:
       - main
 
@@ -30,89 +30,94 @@ jobs:
   unit-tests:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
-    - name: Install and configure poetry
-      run: |
-        pipx install poetry
-        poetry config virtualenvs.in-project true
-    - uses: actions/setup-python@v5
-      with:
-        python-version: ${{ env.PYTHON_VERSION }}
-        cache: 'poetry'
-    - name: Setup poetry
-      run: poetry install
-    - name: Run tests
-      run: |
-        source .venv/bin/activate
-        pytest --cov=$MODULE_NAME --cov-report=xml --cov-fail-under=$MIN_TEST_COV tests
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install and configure poetry
+        run: |
+          pipx install poetry
+          poetry config virtualenvs.in-project true
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          cache: "poetry"
+      - name: Setup poetry
+        run: poetry install
+      - name: Run tests
+        run: |
+          source .venv/bin/activate
+          pytest --cov=$MODULE_NAME --cov-report=xml --cov-fail-under=$MIN_TEST_COV tests
 
   system-tests:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
-    - name: Install and configure poetry
-      run: |
-        pipx install poetry
-        poetry config virtualenvs.in-project true
-    - uses: actions/setup-python@v5
-      with:
-        python-version: ${{ env.PYTHON_VERSION }}
-        cache: 'poetry'
-    - name: Setup poetry
-      run: poetry install
-    - uses: actions/setup-node@v4
-      with:
-        node-version: ${{ env.NODE_VERSION }}
-        cache: 'npm'
-        cache-dependency-path: tests/apollo-server/
-    - name: Install deps and run server
-      run: |
-        cd tests/apollo-server/
-        npm ci
-        node src/index.js &
-    - name: Wait for server
-      run: |
-        for i in {0..10}; do
-          echo "Sleep for 1 second ..."
-          sleep 1
-          if curl -s -o /dev/null "$SERVER"; then
-            echo "$SERVER returned HTTP response!"
-            break
-          fi
-          if [ $i -eq 10 ]; then
-            echo "Server did not respond after 10 seconds!"
-            exit 1
-          fi
-        done
-    - name: Test with pytest
-      run: |
-        source .venv/bin/activate
-        python -m unittest tests/system.py
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install and configure poetry
+        run: |
+          pipx install poetry
+          poetry config virtualenvs.in-project true
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          cache: "poetry"
+      - name: Setup poetry
+        run: poetry install
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: "npm"
+          cache-dependency-path: tests/apollo-server/
+      - name: Install deps and run server
+        run: |
+          cd tests/apollo-server/
+          npm ci
+          node src/index.js &
+      - name: Wait for server
+        run: |
+          for i in {0..10}; do
+            echo "Sleep for 1 second ..."
+            sleep 1
+            if curl -s -o /dev/null "$SERVER"; then
+              echo "$SERVER returned HTTP response!"
+              break
+            fi
+            if [ $i -eq 10 ]; then
+              echo "Server did not respond after 10 seconds!"
+              exit 1
+            fi
+          done
+      - name: Test with pytest
+        run: |
+          source .venv/bin/activate
+          python -m unittest tests/system.py
 
   lint:
-
     runs-on: ubuntu-latest
 
     if: false
     steps:
-    - uses: actions/checkout@v4
-    - name: Install and configure poetry
-      run: |
-        pipx install poetry
-        poetry config virtualenvs.in-project true
-    - uses: actions/setup-python@v5
-      with:
-        python-version: ${{ env.PYTHON_VERSION }}
-        cache: 'poetry'
-    - name: Setup poetry
-      run: poetry install
-    - name: Run lint
-      if: always()
-      run: |
-        source .venv/bin/activate
-        isort -m 9 --line-length 160 $MODULE_NAME tests --check-only
-        pylint --load-plugins pylint_quotes $MODULE_NAME tests
-        docformatter --wrap-summaries 160 --wrap-descriptions 160 -cr $MODULE_NAME tests
-        yapf -rd $MODULE_NAME tests
-        mypy -V
-        mypy $MODULE_NAME tests
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install and configure poetry
+        run: |
+          pipx install poetry
+          poetry config virtualenvs.in-project true
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          cache: "poetry"
+      - name: Setup poetry
+        run: poetry install
+      - name: Run lint
+        if: always()
+        run: |
+          source .venv/bin/activate
+          isort -m 9 --line-length 160 $MODULE_NAME tests --check-only
+          pylint --load-plugins pylint_quotes $MODULE_NAME tests
+          docformatter --wrap-summaries 160 --wrap-descriptions 160 -cr $MODULE_NAME tests
+          yapf -rd $MODULE_NAME tests
+          mypy -V
+          mypy $MODULE_NAME tests