feat: upgrade Nx to v22

[cogwirrel]

Reason for this change

Latest and greatest Nx

Description of changes

Upgrade Nx to v22

Some other misc changes:

• Our unit tests started failing due to project graph computation hanging when running loads of threads - swapped to using the vitest default (forks) and disabling the daemon so our tests reliably run
• Updated the react website generator to use react 19.2.0 and pin, rather than use Nx's react generator values 19.0.0 - this means our version update workflow can keep it current too :)
• Include 3p license generation in version update workflow

Description of how you validated changes

Unit tests and these PR integration tests

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.31%. Comparing base (b73266a) to head (15eaed4).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #354   +/-   ##
=======================================
  Coverage   96.31%   96.31%           
=======================================
  Files          91       91           
  Lines        9209     9210    +1     
  Branches     1094     1093    -1     
=======================================
+ Hits         8870     8871    +1     
  Misses        328      328           
  Partials       11       11           

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