Github Action: Trigger pre-commit hooks (#12)

> This is blocked until
#11 is merged.

* Runs pre-commit checks as a part of Github actions.

PTAL: @ankrgyl 

## Notes
* Github Action's doc from Pre-commit maintainers:
https://github.com/marketplace/actions/pre-commit
* Demo PR on how it works once the Github Action is setup:
dashk#1

---------

Co-authored-by: Kenny <ddashk@users.noreply.github.com>

.github/workflows/lint.yaml

@@ -0,0 +1,15 @@
+# Source: https://github.com/marketplace/actions/pre-commit
+name: lint
+
+on:
+  pull_request:
+  push:
+    branches: [main]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v3
+      - uses: pre-commit/action@v3.0.0