[FSTORE-1299] Add feature store scope to elastic jwt endpoint (3.7)

[kennethmhc]

Make sure there is no duplicate PR for this issue

• Please check if the PR meets the following requirements

• [ ] Adds tests for the submitted changes (for bug fixes & features)
• [ ] Passes the tests
• [ ] HOPSWORKS JIRA issue has been opened for this PR
• [ ] All commits have been squashed down to a single commit

• Post a link to the associated JIRA issue

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

• What is the new behavior (if this is a feature change)?

• Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)

• Other information: