Use GITHUB_TOKEN instead of PERSONAL_ACCESS_TOKEN

[TomWFox]

As noted here...

The token's permissions are limited to the repository that contains your workflow.

Which makes it more secure than using a personal access token which at best can be restricted to granting access to all public repos.

[codecov]

Codecov Report

Merging #124 (de6841e) into main (70820d6) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #124      +/-   ##
==========================================
+ Coverage   81.28%   81.30%   +0.01%     
==========================================
  Files          65       65              
  Lines        5701     5701              
==========================================
+ Hits         4634     4635       +1     
+ Misses       1067     1066       -1     

Impacted Files	Coverage Δ
...t/LiveQuery/Protocols/ParseLiveQueryDelegate.swift	20.00% <0.00%> (+20.00%)	⬆️

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