extension_ci: Ensure version bump does not happen too often (#50108)

Sigh....

Release Notes:

- N/A

extensions/workflows/shared/bump_version.yml

@@ -52,7 +52,7 @@ jobs:
       app-secret: ${{ secrets.ZED_ZIPPY_APP_PRIVATE_KEY }}
     with:
       bump-type: ${{ needs.determine_bump_type.outputs.bump_type }}
-      force-bump: true
+      force-bump: ${{ github.event_name != 'push' }}
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.ref_name == 'main' && github.sha || 'anysha' }}labels
   cancel-in-progress: true

tooling/xtask/src/tasks/workflows/extensions/bump_version.rs

@@ -57,7 +57,7 @@ pub(crate) fn call_bump_version(
         .with(
             Input::default()
                 .add("bump-type", bump_type.to_string())
-                .add("force-bump", true),
+                .add("force-bump", "${{ github.event_name != 'push' }}"),
         )
         .with_app_secrets();