fix: Immediately release locks by pending workflows that are shutting down. Fixes #10733

[terrytangyuan]

Fixes #10733.

[jessesuen]

Based on our discussion, the agreed logic shall be:

1. argo terminate of a Pending workflow waiting on a workflow-level lock, immediately transitions it to Succeeded without waiting for lock acquisition. No exit handlers run
2. argo stop of a Pending workflow waiting on a workflow-level lock, will acquire the lock normally, and reconcile normally (exit handlers will run).

[terrytangyuan]

@jessesuen Updated the PR based on our discussion.