chore(ci): add workflow_dispatch trigger to scorecard workflow

Author: markuslf

.github/workflows/scorecard.yml

@@ -11,6 +11,7 @@ on:
   # https://github.com/ossf/scorecard/blob/main/docs/checks.md#maintained
   schedule:
     - cron: '22 14 * * 4'
+  workflow_dispatch: {}
 
 # Declare default permissions as read only.
 permissions: read-all