Run lints only once, not with all Python versions

.github/workflows/build.yml

@@ -5,6 +5,21 @@ on:
         - main
 
 jobs:
+  lint:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: "3.11"  # TODO: the current pylint version fails on py3.12
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install poetry
+          poetry install
+      - name: Do pre-commit checks (black, lint, mypy)
+        run: poetry run docker/pre_commit_init.sh
+
   test:
     runs-on: ubuntu-latest
     strategy:
@@ -21,9 +36,6 @@ jobs:
           python -m pip install --upgrade pip
           pip install poetry
           poetry install
-      - name: Do pre-commit checks (black, lint, mypy)
-        run: |
-          poetry run docker/pre_commit_init.sh
       - name: Test with pytest
         run: |
           poetry run py.test -v