add python version specific optional test dependencies

Author: drbenvincent

.github/workflows/ci.yml

@@ -19,11 +19,6 @@ jobs:
         uses: actions/setup-python@v3
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Install dependencies
-        run: |
-          python -m ensurepip
-          pip install --upgrade pip
-          pip install setuptools==65.5.0 wheel
       - name: Run doctests
         run: |
           pip install -e .[test]

pyproject.toml

@@ -65,7 +65,12 @@ docs = [
     "sphinxcontrib-bibtex",
 ]
 lint = ["interrogate", "nbqa", "pre-commit", "ruff"]
-test = ["pytest", "pytest-cov"]
+test = [
+    "pytest",
+    "pytest-cov",
+    "setuptools>=65.5.0; python_version >= '3.12'",
+    "wheel; python_version >= '3.12'",
+]
 
 [metadata]
 description-file = 'README.md'