DG-1894 Last Updated Attribute for Custom metadata value now getting updated

[hr2904]

Change description

Added ModifiedTimestamp record for entity/guid/{guid}/businessmetadata API flow.

TestCases

https://www.notion.so/atlanhq/DG-1894-1370e027187b80518405db4e016eb364

Type of change

• Bug fix (fixes an issue)

Related issues

Fix Ticket

Development

• Lint rules pass locally
• Application changes have been tested thoroughly
• Automated tests covering modified code pass

Security

• Security impact of change has been considered
• Code follows company security practices and guidelines

Code review

• Pull request has a descriptive title and context useful to a reviewer. Screenshots or screencasts are attached as necessary
• "Ready for review" label attached and reviewers assigned
• Changes have been reviewed by at least one other contributor
• Pull request linked to task tracker where applicable

[nikhilbonte21]

Please add test cases from the perspective of the POST entity/bulk API as well

[nikhilbonte21]

Please add test cases from the perspective of the POST entity/bulk API as well

I suggest creating a confluence doc so that it can be linked to the ticket as well