DEVO-1052 - update node version

[cbalcazarp4585]

Summary of PR changes

Updated the GitHub Action to use Node.js 24 runtime instead of Node.js 20.

https://im-jira.internal.towerswatson.com/browse/DEVO-1052

Changes Made

• Updated action.yml to use node24 runtime (changed from node20)

PR Requirements

• For major, minor, or breaking changes, at least one of the commit messages contains the appropriate +semver: keywords.
  • See the Incrementing the Version section of the repository's README.md for more details.
  • Note: This change should include +semver:major or +semver:breaking in a commit message as upgrading the Node runtime is a breaking change.
• The action code does not contain sensitive information.

NOTE: If the repo's workflow could not automatically update the README.md, it should be updated manually with the next version. For javascript actions, if the repo's workflow could not automatically recompile the action it should also be updated manually as part of the PR.

Additional Notes

• The action needs to be recompiled by running npm run build before merging this PR.

[github-actions]

Before this PR can be merged, the following item(s) should be addressed to comply with the action's Contributing Guidelines.

• Please update the action's version in the Usage Examples section of README.md. Each instance of this action should be updated to:
  uses: im-open/process-code-coverage-summary@v2.3.1

[github-actions]

The action's Contributing Guidelines have been met:

• The action's version in the Usage Examples section of README.md has been updated to @v2.3.1
• The action has been recompiled (if needed) by running the build command from the root of the repository