add trigger workflow_dispatch to ci.yml

Author: brokkoli71

.github/workflows/ci.yml

@@ -1,6 +1,7 @@
 name: CI
 
 on:
+  workflow_dispatch:
   push:
     branches: [ "main" ]
   pull_request:
@@ -51,4 +52,4 @@ jobs:
       - uses: actions/upload-artifact@v3
         with:
           name: jar
-          path: target/*.jar
+          path: target/*.jar