keycloak hotfix - using update class instantiation

[dbarkowsky]

🎯 Summary

Provides a fix to the issue from updating keycloak-js.
The warning about using old methods for class instantiation is now an error otherwise.

🔰 Checklist

• I have read and agree with the following checklist and am following the guidelines in our Code of Conduct document.

• I have performed a self-review of my code.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation where required.
• I have tested my changes to the best of my ability.
• My changes generate no new warnings.

[codeclimate]

Code Climate has analyzed commit ba8f916 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 0.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 53.2%.

View more on Code Climate.