feat: add workflow_dispatch to release workflow

Author: doITmagic

.github/workflows/release.yml

@@ -4,6 +4,11 @@ on:
   push:
     tags:
       - 'v*'
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Tag to release (defaults to latest)'
+        required: false
 
 permissions:
   contents: write