Add Github workflows for test, lint, and formatting

.github/workflows/format-ruff.yml

@@ -0,0 +1,12 @@
+name: ruff-format
+
+on: pull_request
+
+jobs:
+  ruff-format:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: chartboost/ruff-action@v1
+        with:
+          args: "format --check"

.github/workflows/lint-ruff.yml

@@ -0,0 +1,12 @@
+name: ruff-lint
+
+on: pull_request
+
+jobs:
+  ruff-lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: chartboost/ruff-action@v1
+        with:
+          args: 'check'

.github/workflows/pytest.yml

@@ -0,0 +1,19 @@
+name: pytest
+
+on: pull_request
+
+jobs:
+  pytest:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up PDM
+        uses: pdm-project/setup-pdm@v3
+        with:
+          python-version: 3.9 
+      - name: Install dependencies
+        run: |
+          pdm sync -d
+      - name: Test with pytest
+        run: |
+          pdm run -v pytest tests

.pdm-python

@@ -1 +1 @@
-/Users/akristiadi/.pyenv/shims/python3
+/Users/agustinuskristiadi/Projects/ults/.venv/bin/python