[Feature]: Add GHA for deployment

[jimbrig]

See https://github.com/noclocks/client-bastienlaw/issues/14

name: Deploy to Google Cloud Run

on:
  push:
    branches:
      - main

env:
  PROJECT_ID: ${{ secrets.GCP_PROJECT_ID }}

jobs:
  build-deploy:
    name: Build and Deploy
    runs-on: ubuntu-latest

    steps:
    - name: Checkout
      uses: actions/checkout@v4

    - name: Authenticate with Google Cloud
      uses: google-github-actions/auth@v2
      with:
        credentials_json: '${{ secrets.GCP_CREDENTIALS }}'

    - name: Set up Cloud SDK
      uses: google-github-actions/setup-gcloud@v2

    - name: Deploy to Cloud Run
      run: |
        gcloud run deploy bastienlaw.com \
        --region useast1 \
        --source .\app\ \
        --allow-unauthenticated