Replace flake8 and isort with ruff

.github/workflows/main.yml

@@ -31,18 +31,21 @@ jobs:
       - name: Upload reports to Codecov
         if: ${{ matrix.python == '3.13' }}
         run: codecov
-  static-analysis:
+  mypy:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
-      - name: Install flake8, isort and mypy
-        run: |
-          python -m pip install flake8 isort mypy
-          python -m pip install types-docutils types-PyYAML types-Markdown
-      - name: Run flake8
-        run: flake8 --max-line-length=88 .
-      - name: Run isort
-        run: isort --check-only .
+      - name: Install mypy and type stubs
+        run: python -m pip install mypy types-docutils types-PyYAML types-Markdown
       - name: Run mypy
         run: mypy --ignore-missing-imports --strict .
+  ruff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+      - name: Install ruff
+        run: python -m pip install ruff
+      - name: Run ruff
+        run: ruff check --select F,E,W,I,UP --target-version py310 .