Allow to set pull request custom title and body

[eko]

Hi,

We are using your GitOps rules and would like to add some arguments to the @com_adobe_rules_gitops//gitops/prer:create_gitops_prs in order to allow settings a custom title and/or body pull request.

Description

By default, it continues to act as it is for now by settings the following as title and body: GitOps deployment <branch>, but you can also specify:

• -gitops_pr_title "<your pull request title>"
• -gitops_pr_body "<your pull request body>"

This would be useful for us in order to display a changelog in the pull request body.

Related Issue

https://github.com/adobe/rules_gitops/issues/136

Motivation and Context

We would like to add custom information to the pull request such as a changelog.

How Has This Been Tested?

I've tested it by forking the project and using it in my Bazel project.

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] I have signed the Adobe Open Source CLA.
• [x] My code follows the code style of this project.
• [x] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.

[eko]

Hello, do you think we could have this merged and released soon?

[michaelschiff]

Sorry for the delay, thank you again for the contribution!

[eko]

No problem, thank you @michaelschiff! :)

[eko]

@michaelschiff Could you also please tag a new release with this addition?