ci: Use deploy key to bypass branch protection rules

[aklinker1]

Overview

Branch protection rules have been disabled because our release action pushes to the main branch. This PR adds a deploy key to the publish workflow to allow CI to bypass the rules and push the version/changelog to main.

https://github.com/sbellone/release-workflow-example

Todo

• Re-enable branch protection rules

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.11%. Comparing base (9d4724f) to head (86f2cac).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1861      +/-   ##
==========================================
+ Coverage   80.97%   81.11%   +0.14%     
==========================================
  Files         131      131              
  Lines        6679     6679              
  Branches     1092     1094       +2     
==========================================
+ Hits         5408     5418      +10     
+ Misses       1260     1250      -10     
  Partials       11       11              

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[github-actions]

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