GitHub Action to run pre-commit

.github/workflows/pre-commit.yml

@@ -0,0 +1,16 @@
+# https://pre-commit.com
+# This GitHub Action assumes that the repo contains a valid .pre-commit-config.yaml file.
+name: pre-commit
+on: [pull_request, push]
+jobs:
+  pre-commit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: "3.8"
+      - run: pip install pre-commit poetry
+      - run: pre-commit --version
+      - run: pre-commit install
+      - run: pre-commit run --all-files