feat: add isort action

.github/workflows/style.yml

@@ -0,0 +1,20 @@
+name: Lint
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: psf/black@stable
+      - uses: actions/setup-python@v2
+        with:
+          python-version: 3.9
+      - name: Install requirements
+        run: pip install ".[dev]"
+      - uses: jamescurtin/isort-action@master

pyproject.toml

@@ -0,0 +1,2 @@
+[tool.isort]
+profile = "black"