Update rollup to v4.22.5

[joelvdavies]

Description

I intended to only add the resolution to force the update. But it ended up requiring it as if I remove it, the next yarn install immediately replaces rollup with the latest version which hasn't even made 24 hours after release yet. So had to leave it in.

(We should probably remove it on develop once merged)

Updated using yarn set resolution rollup@npm:^4.20.0 npm:4.22.5.

Testing instructions

Add a set up instructions describing how the reviewer should test the code

• Review code
• Check Actions build
• Review changes to test coverage

Agile board tracking

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.42%. Comparing base (ee1486e) to head (2451ff0).
Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff            @@
##             main    #1094    +/-   ##
========================================
  Coverage   83.42%   83.42%            
========================================
  Files         163      163            
  Lines       39004    39004            
  Branches     4162     4996   +834     
========================================
  Hits        32540    32540            
+ Misses       6433     6429     -4     
- Partials       31       35     +4     

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