Update openid-connect.js

[vepatel]

Proposed changes

• Update openid-connect.js in-line with https://github.com/nginxinc/nginx-openid-connect/blob/main/openid_connect.js

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

[codecov]

Codecov Report

Merging #3995 (e3e4660) into main (aaec464) will increase coverage by 0.02%.
The diff coverage is n/a.

❗ Current head e3e4660 differs from pull request most recent head 0583636. Consider uploading reports for the commit 0583636 to get more accurate results

@@            Coverage Diff             @@
##             main    #3995      +/-   ##
==========================================
+ Coverage   51.81%   51.83%   +0.02%     
==========================================
  Files          59       59              
  Lines       16697    16697              
==========================================
+ Hits         8651     8655       +4     
+ Misses       7747     7745       -2     
+ Partials      299      297       -2     

see 1 file with indirect coverage changes

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