chore: Split CI checks into separate jobs

.github/actions/setup-python-dev/action.yml

@@ -0,0 +1,26 @@
+name: Setup Python dev environment
+description: Set up Python, uv, and dev dependencies for CI checks.
+
+inputs:
+    python-version:
+        description: Python version to install.
+        required: false
+        default: 3.11.11
+
+runs:
+    using: composite
+    steps:
+        - name: Set up Python ${{ inputs.python-version }}
+          uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55
+          with:
+              python-version: ${{ inputs.python-version }}
+
+        - name: Install uv
+          uses: astral-sh/setup-uv@cec208311dfd045dd5311c1add060b2062131d57 # v8.0.0
+          with:
+              enable-cache: true
+
+        - name: Install dev dependencies
+          shell: bash
+          run: |
+              UV_PROJECT_ENVIRONMENT=$pythonLocation uv sync --extra dev

.github/workflows/ci.yml

@@ -9,43 +9,83 @@ on:
 permissions:
     contents: read
 
+concurrency:
+    group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+    cancel-in-progress: true
+
 jobs:
-    code-quality:
-        name: Code quality checks
+    ruff-format:
+        name: Ruff format
         runs-on: ubuntu-latest
 
         steps:
             - uses: actions/checkout@85e6279cec87321a52edac9c87bce653a07cf6c2
               with:
                   fetch-depth: 1
 
-            - name: Set up Python 3.11
-              uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55
-              with:
-                  python-version: 3.11.11
-
-            - name: Install uv
-              uses: astral-sh/setup-uv@cec208311dfd045dd5311c1add060b2062131d57 # v8.0.0
-              with:
-                  enable-cache: true
-
-            - name: Install dev dependencies
-              shell: bash
-              run: |
-                  UV_PROJECT_ENVIRONMENT=$pythonLocation uv sync --extra dev
+            - name: Set up Python dev environment
+              uses: ./.github/actions/setup-python-dev
 
             - name: Check formatting with ruff
               run: |
                   ruff format --check .
 
+    ruff-lint:
+        name: Ruff lint
+        runs-on: ubuntu-latest
+
+        steps:
+            - uses: actions/checkout@85e6279cec87321a52edac9c87bce653a07cf6c2
+              with:
+                  fetch-depth: 1
+
+            - name: Set up Python dev environment
+              uses: ./.github/actions/setup-python-dev
+
             - name: Lint with ruff
               run: |
                   ruff check .
 
+    mypy:
+        name: Mypy
+        runs-on: ubuntu-latest
+
+        steps:
+            - uses: actions/checkout@85e6279cec87321a52edac9c87bce653a07cf6c2
+              with:
+                  fetch-depth: 1
+
+            - name: Set up Python dev environment
+              uses: ./.github/actions/setup-python-dev
+
             - name: Check types with mypy
               run: |
                   mypy --no-site-packages --config-file mypy.ini  . | mypy-baseline filter
 
+    package-build:
+        name: Package build
+        runs-on: ubuntu-latest
+
+        steps:
+            - uses: actions/checkout@85e6279cec87321a52edac9c87bce653a07cf6c2
+              with:
+                  fetch-depth: 1
+
+            - name: Set up Python 3.11
+              uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55
+              with:
+                  python-version: 3.11.11
+
+            - name: Install uv
+              uses: astral-sh/setup-uv@cec208311dfd045dd5311c1add060b2062131d57 # v8.0.0
+              with:
+                  enable-cache: true
+
+            - name: Build and verify distributions
+              run: |
+                  uv build
+                  uv run --with twine twine check dist/*
+
     tests:
         name: Python ${{ matrix.python-version }} tests
         runs-on: ubuntu-latest