Merge pull request #2390 from cartland:workflow_dispatch

PiperOrigin-RevId: 754971559

Author: copybara-androidxtest

.github/workflows/ci.yml

@@ -1,5 +1,6 @@
 name: Build
 on:
+  workflow_dispatch:
   push:
     branches:
       - main
@@ -118,4 +119,3 @@ jobs:
         with:
           name: test-reports
           path: gradle-tests/**/build/reports/androidTests/
-