CI: switch to uv with caching and cancel in-progress PR runs

.github/workflows/ci.yml

@@ -3,33 +3,52 @@ name: CI
 on:
   pull_request:
 
+concurrency:
+  group: ci-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: docker/setup-buildx-action@v3
-      - name: Build
-        run: docker compose build
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+      - uses: astral-sh/setup-uv@v4
+        with:
+          enable-cache: true
+      - name: Install dependencies
+        run: uv pip install --system -r requirements/base.txt
       - name: Ruff
-        run: docker compose run --rm web ruff check .
+        run: ruff check .
 
   typecheck:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: docker/setup-buildx-action@v3
-      - name: Build
-        run: docker compose build
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+      - uses: astral-sh/setup-uv@v4
+        with:
+          enable-cache: true
+      - name: Install dependencies
+        run: uv pip install --system -r requirements/base.txt
       - name: Mypy
-        run: docker compose run --rm web mypy apps config
+        run: mypy apps config
 
   tests:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: docker/setup-buildx-action@v3
-      - name: Build
-        run: docker compose build
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+      - uses: astral-sh/setup-uv@v4
+        with:
+          enable-cache: true
+      - name: Install dependencies
+        run: uv pip install --system -r requirements/base.txt
       - name: Pytest
-        run: docker compose run --rm web pytest
+        run: pytest