Update terra-functional-testing to 4

[sdadn]

Summary

This PR updates terra-functional-testing to 4. As part of that upgrade, webpack was updated to 5 and npm 9 support was added.

Note: graphs only had the default-theme screenshots generated.

Testing

This change was tested using:

• [x] WDIO
• [ ] Jest
• [ ] Visual testing (please attach a screenshot or recording)
• [ ] Other (please describe below)
• [ ] No tests are needed

In addition to to wdio tests, this was tested by running npm start successfully after the webpack upgrade.

Reviews

In addition to engineering reviews, this PR needs:

• [ ] UX review
• [ ] Accessibility review
• [ ] Functional review

Additional Details

This PR resolves: UXPLATFORM-9601

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Thank you for contributing to Terra. @cerner/terra

[sdadn]

Note: This PR will not pass the build as webpack 5 is not compatible with the current Karma 6. @adoroshk and I tried looking for an easy solution to address the incompatibility, however we couldn't find a quick & easy fix. At this point, it's better to switch over to Jest for better compatibility with the rest of the Terra ecosystem, then investing in extended time for a temporary fix. That work will be done in a subsequent PR/Jira.