Separate test and linting actions

.github/workflows/perform_linting.yml

@@ -0,0 +1,26 @@
+name: Perform linting
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      max-parallel: 4
+      matrix:
+        python-version: ["3.9", "3.10"]
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v3
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e ".[dev]"
+      - name: Formatting
+        run: |
+          black --check .
+          mypy --ignore-missing-imports .

.github/workflows/test_pythonpackage.yaml

@@ -20,10 +20,6 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install -e ".[dev]"
-      - name: Formatting
-        run: |
-          black --check .
-          mypy --ignore-missing-imports .
       - name: Test with pytest
         run: |
           pytest