Fix / Keycloak startup issue with admin-fine-grained-authz

[AssahBismarkabah]

What this PR does / why we need it:

Which issue this PR fixes: Keycloak startup issue with admin-fine-grained-authz feature flag

Special notes for your reviewer: Fixed the Keycloak startup failure caused by incorrect syntax for enabling the admin-fine-grained-authz feature. Changed --features admin-fine-grained-authz to --features=admin-fine-grained-authz in the docker-compose file to ensure proper startup.

PR Readiness Checklist:

Complete these before marking the PR as ready to review:

• [x] the CHANGELOG.md release notes have been updated to reflect any significant (and particularly user-facing) changes introduced by this PR

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud