feat: add github action

[QuiiBz]

Closes #67

Add a GitHub Action to remove the need for actions/setup-node and having to run Sherif manually:

name: Sherif
on:
  pull_request:
jobs:
  check:
    name: Run Sherif
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v4
      - uses: actions/sherif@v1
        # Optionally, you can specify a version and arguments to run Sherif with:
        # with:
          # version: 'v1.0.1'
          # args: '--ignore-rule root-package-manager-field'