fix broken CI

[Yurlungur]

PR Summary

As reported by @mauneyc-LANL there is apparently some issue with the current ubuntu CI calls to set up dependencies. I try to resolve here.

PR Checklist

• [x] Code is formatted. (You can use the format_spiner make target.)
• [x] Adds a test for any bugs fixed. Adds tests for new features.
• [x] If preparing for a new release, update the version in cmake.

[Yurlungur]

Removing firefox and installing only what's needed, instead of doing apt upgrade appears to resolve the issue.