feat: custom websocket support

[helios57]

We need to add special protocols to connect to our mqtt broker over websocket. With this small addition (which hopefully helps others as well) we can do it very easy. Otherwhise we need to build our own streamBuilder and copy alot code.

[robertsLando]

Please add a unit test that covers this feature and also mention it in docs

[codecov]

Codecov Report

Patch coverage: 16.66% and project coverage change: -0.24% ⚠️

Comparison is base (827daa8) 81.09% compared to head (b062036) 80.86%.

❗ Current head b062036 differs from pull request most recent head 891aaff. Consider uploading reports for the commit 891aaff to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1696      +/-   ##
==========================================
- Coverage   81.09%   80.86%   -0.24%     
==========================================
  Files          21       21              
  Lines        1365     1369       +4     
  Branches      322      324       +2     
==========================================
  Hits         1107     1107              
- Misses        181      184       +3     
- Partials       77       78       +1     

Files Changed	Coverage Δ
src/lib/client.ts	85.83% <ø> (ø)
src/lib/connect/ws.ts	35.65% <16.66%> (-1.15%)	⬇️

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[helios57]

Thanks for the fast response. Unittest is now added and the docs should be updated.