🔧. Add manual repository dispatch

Both workflows receive a manual repository dispatch. Added directly to main to ensure it is available for future PRs

Author: keithrfung

.github/workflows/pull_request.yml

@@ -1,6 +1,9 @@
 name: Validate Pull Request
 
-on: [pull_request, repository_dispatch]
+on:
+  pull_request:
+  repository_dispatch:
+    types: [pull_request]
 
 env:
   PYTHON_VERSION: 3.8

.github/workflows/release.yml

@@ -3,6 +3,8 @@ name: Release Build
 on:
   milestone:
     types: [closed]
+  repository_dispatch:
+    types: [milestone_closed]
 
 env:
   PYTHON_VERSION: 3.8