[PIMS-137] Update keycloak-js

[dbarkowsky]

🎯 Summary

PIMS-137: Update keycloak-js

No apparent issues with this module.

I did run into an issue where logging out sometimes failed. Some devs seem to have this issue, others don't.
This seems to be related to whether or not the user is on the VPN, which seems like an issue for a future fix.

Additionally, the logout doesn't redirect to the login page, but it seems like it probably should.

🔰 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 86ed942 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

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

View more on Code Climate.