Extend PreventIndexCreation cop

Ref: #339280 (closed)

What does this MR do?

Following up !68913 (merged) where we discovered that our existing cop was not catching all use cases when creating a new index:

add_concurrent_index "ci_builds", ... # table name is a string
add_concurrent_index TABLE_NAME,  ... # table name is a constant

This MR extends our existing cop to make sure we will catch all these false positives once this MR is merged.

Does this MR meet the acceptance criteria?

Conformity

• [-] I have included changelog trailers, or none are needed. (Does this MR need a changelog?)
• [-] I have added/updated documentation, or it's not needed. (Is documentation required?)
• [-] I have properly separated EE content from FOSS, or this MR is FOSS only. (Where should EE code go?)
• [-] I have added information for database reviewers in the MR description, or it's not needed. (Does this MR have database related changes?)
• I have self-reviewed this MR per code review guidelines.
• This MR does not harm performance, or I have asked a reviewer to help assess the performance impact. (Merge request performance guidelines)
• I have followed the style guides.
• This change is backwards compatible across updates, or this does not apply.