Use ubuntu base and installing uv to manage dependencies and run checks

- Replaces containerized linting with uv for dependency management.
- Installs uv and adds its bin directory to the PATH.
- Uses uv to install and run Ruff, Mypy, Pytest, and Coverage.
- Simplifies the workflow by using uv for all checks and tests.

.gitea/workflows/ci.yml

@@ -7,26 +7,37 @@ on:
   pull_request:
 
 jobs:
-  lint:
+  setup:
     runs-on: ubuntu-latest
-    container:
-      image: ghcr.io/astral-sh/uv:0.6-python3.13-bookworm
     steps:
       - uses: actions/checkout@v3
-      - name: Run Ruff & Mypy
+
+      - name: Install uv
         run: |
+          curl -LsSf https://astral.sh/uv/install.sh | sh
+          echo "$HOME/.cargo/bin" >> $GITHUB_PATH
+
+      - name: Lint with ruff and mypy
+        run: |
+          uv pip install ruff mypy
           uv run ruff check
           uv run ruff format --check
           uv run mypy .
 
   test:
     runs-on: ubuntu-latest
-    container:
-      image: ghcr.io/astral-sh/uv:0.6-python3.13-bookworm
     steps:
       - uses: actions/checkout@v3
-      - name: Run Pytest
+
+      - name: Install uv
         run: |
+          curl -LsSf https://astral.sh/uv/install.sh | sh
+          echo "$HOME/.cargo/bin" >> $GITHUB_PATH
+
+      - name: Run tests
+        run: |
+          uv pip install pytest coverage
           uv run pytest -v --cov=. --cov-report=xml
+
       - name: Upload to Codecov
         run: bash <(curl -s https://codecov.io/bash)