Update build-and-push-v2.yaml

Author: phillipleblanc

.github/workflows/build-and-push-v2.yaml

@@ -1,14 +1,6 @@
 name: Build and publish
 on:
-  push:
-    branches:
-      - main
-  pull_request:
-    branches:
-      - main
-  release:
-    types:
-      - published
+  workflow_dispatch:
 
 env:
   # github.repository as <account>/<repo>