Automatic merge from submit-queue

leader election lock based on scheduler name

**What this PR does / why we need it**:
This pr changed the leader election lock based on scheduler name.
**Which issue this PR fixes** :
fixes #39032

**Special notes for your reviewer**:

**Release note**:
```
[scheduling]Fix a bug for multiple-schedulers that you cannot start a second scheduler without disabling leader-elect if the default scheduler has leader-elect enabled(default). We changed the leader election lock based on scheduler name.
```