Remove named-js-group

[Tyriar]

uglify-js doesn't appear to be in the project anymore and it seems that was the only reason it was included based on a comment? Regardless, support is good for named capture group in all browsers/node now.

Part of #11996

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#browser_compatibility

[Tyriar]

@types/uglify-js is actually used via @types/html-minifier-terser

[codecov-commenter]

Codecov Report

Merging #12035 (fb7c7e1) into main (da681ee) will decrease coverage by 0%.
The diff coverage is 50%.

@@           Coverage Diff           @@
##            main   #12035    +/-   ##
=======================================
- Coverage     62%      62%    -1%     
=======================================
  Files        502      502            
  Lines      35918    35916     -2     
  Branches    5813     5813            
=======================================
- Hits       22545    22312   -233     
- Misses     11232    11493   +261     
+ Partials    2141     2111    -30     

Impacted Files	Coverage Δ
src/kernels/helpers.ts	66% <0%> (-1%)	⬇️
...kernels/jupyter/launcher/jupyterConnection.node.ts	75% <100%> (-9%)	⬇️
...otebooks/debugger/controllers/restartController.ts	10% <0%> (-75%)	⬇️
...ebooks/debugger/controllers/runByLineController.ts	13% <0%> (-66%)	⬇️
src/notebooks/debugger/kernelDebugAdapter.ts	20% <0%> (-65%)	⬇️
src/notebooks/debugger/debuggingManager.ts	30% <0%> (-50%)	⬇️
src/kernels/errors/jupyterKernelDependencyError.ts	57% <0%> (-43%)	⬇️
src/notebooks/debugger/kernelDebugAdapterBase.ts	57% <0%> (-19%)	⬇️
src/notebooks/debugger/commandRegistry.ts	37% <0%> (-15%)	⬇️
...kernels/jupyter/session/backingFileCreator.base.ts	68% <0%> (-13%)	⬇️
... and 39 more