ci: setup github actions and ruff

.github/actions/setup.yaml

@@ -0,0 +1,10 @@
+name: Setup
+description: Setup repository
+runs:
+  using: composite
+  steps:
+    - uses: actions/setup-python@v5
+      with:
+        python-version: 3.8
+        cache: pip
+    - run: pip install -r requirements.txt

.github/workflows/checks.yaml

@@ -0,0 +1,19 @@
+name: Check
+on: [push, pull_request]
+
+jobs:
+  ruff-check:
+    name: Ruff Checker
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/setup
+      - run: ruff check
+
+  ruff-format:
+    name: Ruff Formatter
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/setup
+      - run: ruff format