[hotfix][autoscaler] Fix that the 'deletedTotalCount' is not updated when cleaning historical event handler records in JDBC event handler

[RocMarshal]

What is the purpose of the change

Fix that the 'deletedTotalCount' is not updated when cleaning historical event handler records in JDBC event handler

Brief change log

Fix that the 'deletedTotalCount' is not updated when cleaning historical event handler records in JDBC event handler

Verifying this change

(Please pick either of the following options)

This change is already covered by existing tests

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): (yes / no)
• The public API, i.e., is any changes to the CustomResourceDescriptors: (yes / no)
• Core observer or reconciler logic that is regularly executed: (yes / no)

Documentation

• Does this pull request introduce a new feature? (yes / no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)