fix: cherry pick PR improvement

[sethkfman]

Description

This PR fixes fetching of all the branches needed to create the cherry pick PRs.

Linked test PR that was created from action:

Related issues

Fixes: NA

Manual testing steps

1. Go to the action page & select "Create Cherry Pick PR"
2. Select run workflow from fix/cherry-pick-node-version
3. Enter base branch, commit hash and PR number
4. PR should be successfully created unless conflicts occur in the creation and action should fail.

Screenshots/Recordings

Link successful PR runs

Before

https://github.com/MetaMask/metamask-mobile/actions/runs/6867014033

After

Successful cherry-pick: #8316
https://github.com/MetaMask/metamask-mobile/actions/runs/7562792265

Pre-merge author checklist

• I’ve followed MetaMask Coding Standards.
• I've clearly explained what problem this PR is solving and how it is solved.
• I've linked related issues
• I've included manual testing steps
• I've included screenshots/recordings if applicable
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.
• I’ve properly set the pull request status:
  • In case it's not yet "ready for review", I've set it to "draft".
  • In case it's "ready for review", I've changed it from "draft" to "non-draft".

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (f791282) 40.21% compared to head (66a80b9) 40.21%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7793   +/-   ##
=======================================
  Coverage   40.21%   40.21%           
=======================================
  Files        1235     1235           
  Lines       29885    29885           
  Branches     2863     2863           
=======================================
  Hits        12018    12018           
  Misses      17176    17176           
  Partials      691      691           

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[sonarqubecloud]

Please retry analysis of this Pull-Request directly on SonarCloud

[frankvonhoven]

Looks good, worked in the wild 🚀

[sonarqubecloud]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud