stream: use RangeError for broadcast overflow

[trivikr]

Fixes: #64419

Broadcast writers using the strict backpressure policy currently reject
with ERR_INVALID_STATE as a TypeError when the pending writes queue
overflows.

This change uses ERR_INVALID_STATE.RangeError, matching the existing
push writer behavior, and adds regression coverage for the error type and code.

[nodejs-github-bot]

Review requested:

• @nodejs/streams

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.26%. Comparing base (6eff679) to head (e37419d).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #64420      +/-   ##
==========================================
+ Coverage   90.23%   90.26%   +0.02%     
==========================================
  Files         741      741              
  Lines      241342   241342              
  Branches    45474    45476       +2     
==========================================
+ Hits       217767   217836      +69     
+ Misses      15123    15069      -54     
+ Partials     8452     8437      -15     

Files with missing lines	Coverage Δ
lib/internal/streams/iter/broadcast.js	87.48% <100.00%> (+1.52%)	⬆️

... and 35 files with indirect coverage changes

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