fix: remove yale global pubnub tokens

[bdraco]

Yale global brand now uses WebSockets

[codecov]

Codecov Report

Attention: Patch coverage is 42.85714% with 4 lines in your changes missing coverage. Please review.

Project coverage is 62.42%. Comparing base (219d176) to head (0843eb1).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
yalexs/pubnub_async.py	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #180      +/-   ##
==========================================
+ Coverage   62.39%   62.42%   +0.03%     
==========================================
  Files          31       31              
  Lines        2247     2249       +2     
  Branches      388      388              
==========================================
+ Hits         1402     1404       +2     
  Misses        794      794              
  Partials       51       51              

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