fix(.github/workflows) Grab the first access token URL

[shalier]

Description:
Two access token URLs are available, but need just one for the automerge feature

Affected area:

• New Functionality [ ]
• Documentation [ ]
• Install [ ]
• Control Plane [ ]
• CLI Tool [ ]
• Certificate Management [ ]
• Networking [ ]
• Metrics [ ]
• SMI Policy [ ]
• Security [ ]
• Tests [ ]
• CI System [ ]
• Performance [ ]
• Other [ X]

Please answer the following questions with yes/no.

• Does this change contain code from or inspired by another project? If so, did you notify the maintainers and provide attribution?

[codecov-io]

Codecov Report

Merging #2577 (0a9f9d1) into main (d9e691c) will decrease coverage by 0.19%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #2577      +/-   ##
==========================================
- Coverage   63.12%   62.93%   -0.20%     
==========================================
  Files         154      154              
  Lines        7133     7133              
==========================================
- Hits         4503     4489      -14     
- Misses       2613     2627      +14     
  Partials       17       17              

Flag	Coverage Δ
unittests	62.93% <ø> (-0.20%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/configurator/validating_webhook.go	70.34% <0.00%> (-9.66%)	⬇️

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