Fix deploy workflow

[NicholasEllul]

Explanation

This pull request updates the deploy workflow to explicitly note the environment its part of (github-pages) and use the personal_token field as per the peaceiris/actions-gh-pages docs.

This mimics a similar setup as the Website repository here: https://github.com/MetaMask/website/blob/master/.github/workflows/integrate.yml

References

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've highlighted breaking changes using the "BREAKING" category above as appropriate

[christopherferreira9]

LGTM

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.15%. Comparing base (c163fa5) to head (f886cbe).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1086   +/-   ##
=======================================
  Coverage   77.15%   77.15%           
=======================================
  Files         180      180           
  Lines        4260     4260           
  Branches     1050     1050           
=======================================
  Hits         3287     3287           
  Misses        973      973           

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[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud