Mehrdad Rahanjam

fix deploy maven issue

1

This PR is temporary for testing a build issue in cdap-build (so that manual runs point to this branch)

Add colon to accepted chars for dataset id

6

This PR adds colon to the accepted chars for dataset id JIRA: [CDAP-19519](https://cdap.atlassian.net/browse/CDAP-19519)

This PR adds e2e tests for dataplex metadata update. JIRA: [PLUGIN-1386](https://cdap.atlassian.net/browse/PLUGIN-1386)

This PR updates the validation methods to account for null reference names now that we are making them optional for certain plugins.