Add manual push to deploy workflow

Author: chrisqm-dev

.github/workflows/deploy.yml

@@ -1,6 +1,8 @@
 name: GitHub CloudFormation Deployment
 run-name: ${{ github.actor }} is testing out GitHub Actions 🚀
-on: [push]
+on: 
+  push:
+  workflow_dispatch:
 permissions:
   id-token: write   # This is required for requesting the JWT
   contents: read    # This is required for actions/checkout