Reports / Fix extract user groups for non-admin users

[josegar74]

Test case:

1. Create a new user with the roles: UserAdmin and Reviewer in the Sample group
2. Login as the new user
3. In the Admin console > Reports select a report

• Without the fix: the group is listed 3 times (NO OK).
• With the fix: the group is listed 1 time (OK).

Checklist

• I have read the contribution guidelines
• Pull request provided for main branch, backports managed with label
• Good housekeeping of code, cleaning up comments, tests, and documentation
• Clean commit history broken into understandable chucks, avoiding big commits with hundreds of files, cautious of reformatting and whitespace changes
• Clean commit messages, longer verbose messages are encouraged
• API Changes are identified in commit messages
• Testing provided for features or enhancements using automatic tests
• User documentation provided for new features or enhancements in manual
• Build documentation provided for development instructions in README.md files
• Library management using pom.xml dependency management. Update build documentation with intended library use and library tutorials or documentation

[MichelGabriel]

I can confirm there is now only 1 group