fix: add dependency installation step for ubuntu runners needed for pygame version bump

[abanuelo]

Description

PyGame recently bumped to version 2.6.0 https://pypi.org/project/pygame/2.6.0/, introducing some breaking changes for our CI. To resolve, we have an extra step that is ubuntu-specific to install necessary dependencies! Fix reported here: https://github.com/pygame/pygame/issues/4275

Issue Link

Checklist

• [X] I have tested the changes locally via pytest and/or other means
• [ ] I have added or updated relevant documentation
• [ ] I have autoformatted the code with black and isort
• [ ] I have added test cases (if applicable)

Additional Notes

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 91.28%. Comparing base (d7679fb) to head (e46058c).

Additional details and impacted files

[](https://app.codecov.io/gh/BerkeleyLearnVerify/Scenic/pull/284?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=BerkeleyLearnVerify) ```diff @@ Coverage Diff @@ ## main #284 +/- ## ========================================== - Coverage 91.32% 91.28% -0.04% ========================================== Files 54 54 Lines 13515 13513 -2 ========================================== - Hits 12343 12336 -7 - Misses 1172 1177 +5 ``` [see 6 files with indirect coverage changes](https://app.codecov.io/gh/BerkeleyLearnVerify/Scenic/pull/284/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=BerkeleyLearnVerify)

[abanuelo]

Closing this PR as it seems that there was a corruption in the Linux X86 binary for Pygame's latest release that has been resolved: https://github.com/pygame/pygame/issues/4275#issuecomment-2190782101