[Enhancement] Upgrade Shiro to htmlunit 3.3.0 or higher

[lprimak]

Search before asking

• I had searched in the issues and found no similar issues.

Enhancement Request

HtmlUnit 2.x is EOL.
Need to update to HtmlUnit 3.x as described below:
https://github.com/HtmlUnit/htmlunit/releases/tag/3.3.0

Describe the solution you'd like

Self-expanatory

Are you willing to submit PR?

• Yes I am willing to submit a PR!

[bmarwell]

If it was not so much work, I'd say use JSoup... but that may be for another day.

[lprimak]

Seems simple just to upgrade, but I am not opposed to jsoup either