[feature request]: possibility to configure the PR prefix

[atomrc]

I'm in a repo where we enforce semantic commits and we match it against the PR title.

Would it be possible to add an optional prefix input so that we could add our custom semantic prefix there?

 - name: Create PR to branch
      uses: gorillio/github-action-cherry-pick@master
      with:
        pr_branch: '0.1.x'
+       pr_prefix: 'chore:'
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}