KSQL-12164: Remove disable ITs flag

[kagarwal06]

Description

Background: Currently, all the ITs of ksqldb are getting skipped due to some failures(as per historical context - the failures are not due to functionality issues) cc @pbadani

Instead of skipping all the ITs, this change will skip only the failing ITs.
Then we can pick up to fix them one by one.

Testing done

Describe the testing strategy. Unit and integration tests are expected for any behavior changes.

Reviewer checklist

• Ensure docs are updated if necessary. (eg. if a user visible feature is being added or changed).
• Ensure relevant issues are linked (description should include text like "Fixes #")
• Do these changes have compatibility implications for rollback? If so, ensure that the ksql command version is bumped.