CI: simplify workflows

Author: lucascolley

.github/workflows/ci.yml

@@ -34,8 +34,8 @@ jobs:
         with:
           pixi-version: v0.30.0
           cache: true
-      - name: Run lint checks
-        run: pixi run lint
+      - name: Run Pylint
+        run: pixi run -e lint pylint
 
   checks:
     name: Check Python ${{ matrix.python-version }} on ${{ matrix.runs-on }}
@@ -44,35 +44,23 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.13"]
-        runs-on: [ubuntu-latest, windows-latest, macos-14]
-
-        include:
-          - python-version: "pypy-3.10"
-            runs-on: ubuntu-latest
+        environment: [ci-py309, ci-py312]
+        runs-on: [ubuntu-latest]
 
     steps:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
-      - uses: actions/setup-python@v5
-        with:
-          python-version: ${{ matrix.python-version }}
-          allow-prereleases: true
-
       - uses: prefix-dev/setup-pixi@v0.8.1
         with:
           pixi-version: v0.30.0
           cache: true
 
-      - name: Install package
-        run: python -m pip install .[test]
-
       - name: Test package
-        run: pixi run -e test test-ci
+        run: pixi run test-ci
 
-      - name: Upload coverage report
-        uses: codecov/codecov-action@v4.5.0
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
+      # - name: Upload coverage report
+      #   uses: codecov/codecov-action@v4.5.0
+      #   with:
+      #     token: ${{ secrets.CODECOV_TOKEN }}