add workflow dispatch to public release workflow

.github/workflows/release.yml

@@ -4,6 +4,15 @@ on:
   release:
     types:
       - published
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Release version'
+        required: true
+      environment:
+        description: 'Deployment environment'
+        required: true
+        default: 'production'
 
 jobs:
   publish_packages: