Flutter web deployment with rsync using ssh

flutter-web-deploy.yml

name: CD User-Prod-Lane
# Controls when the action will run. Triggers the workflow on push or pull request
# events but only for the master branch.

on:
  push:
    branches:
      - master
jobs:
  build:
    name: Build Web and Release
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v1

      - name: Setup Java
        uses: actions/setup-java@v1
        with:
          java-version: "11.x"

      - name: Setup Flutter
        uses: subosito/flutter-action@v1
        with:
          flutter-version: "3.0.2"
          channel: 'stable'
          
      - name: Pub Get Packages
        run: flutter pub get

      - name: Build Web
        run: flutter build web -t lib/main.dart

      - name: Install SSH Key
        uses: shimataro/ssh-key-action@v2
        with:
          key: ${{ secrets.SERVER_KEY }}
          known_hosts: 'just-a-placeholder-so-we-dont-get-errors'

      - name: Adding Known Hosts
        run: ssh-keyscan -H ${{ secrets.SSH_HOST }} >> ~/.ssh/known_hosts

      - name: Deploy with rsync
        run: rsync -avz ./build/web/ ${{ secrets.SSH_USER }}@${{ secrets.SSH_HOST }}:/var/www/html/your_server_dir