[Improvement][Seatunnel-web] Bump seatunnel version from 2.3.7 to 2.3.8

[arshadmohammad]

Upgraded seatunnel version from 2.3.7 to 2.3.8 and modified related files

Purpose of this pull request

Check list

• Code changed are covered with tests, or it does not need tests for reason:
• If any new Jar binary package adding in your PR, please add License Notice according
  New License Guide
• If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs

[arshadmohammad]

Executed integration tests, all are passed.