DYN-6810 Update LaunchDarkly Version legal info

[QilongTang]

Purpose

Update LaunchDarkly version in about box as follow up of #15060

Declarations

Check these if you believe they are true

• The codebase is in a better state after this PR
• Is documented according to the standards
• The level of testing this PR includes is appropriate
• User facing strings, if any, are extracted into *.resx files
• All tests pass using the self-service CI.
• Snapshot of UI changes, if any.
• Changes to the API follow Semantic Versioning and are documented in the API Changes document.
• This PR modifies some build requirements and the readme is updated
• This PR contains no files larger than 50 MB

Release Notes

Update LaunchDarkly version in about box in Dynamo

Reviewers

@DynamoDS/dynamo

FYIs

(FILL ME IN, Optional) Names of anyone else you wish to be notified of

[github-actions]

See the ticket for this pull request: https://jira.autodesk.com/browse/DYN-6810

[QilongTang]

Found this info mismatch during a SPIKE, could be 3.2.1 candidate

[github-actions]

UI Smoke Tests

Test: success. 2 passed, 0 failed.
TestComplete Test Result
Workflow Run: UI Smoke Tests
Check: UI Smoke Tests - net8.0