gitlab_projects(s): Add suggestion_commit_message

[pascal-hofmann]

Edit: I just noticed that I mixed up the field names in my initial commit message. This is fixed now. 😓🙈

Description

Closes #1248.

PR Checklist Acknowledgement

• I acknowledge that all of the following items are true, where applicable:
  • Resource attributes match 1:1 the names and structure of the API resource in the GitLab API documentation.
  • Examples are updated with:
    • A *.tf file for the resource/s with at least one usage example
    • A *.sh file for the resource/s with an import example (if applicable)
  • New resources have at minimum a basic test with three steps:
    • Create the resource
    • Update the attributes
    • Import the resource
  • No new //lintignore comments were copied from existing code. (Linter rules are meant to be enforced on new code.)

[github-actions]

Welcome @pascal-hofmann 👋

It looks like this is your first submission to the Terraform GitLab Provider! If you haven’t already done so, please make sure you have checked out our CONTRIBUTING.md guide to make sure your contribution has all the necessary elements in place for a successful approval.

Thanks again, and welcome to the community! 😃

[timofurrer]

Thanks for the contribution @pascal-hofmann 🌮

LGTM 🚢

[github-actions]

Marking this pull request as stale due to 30 days of inactivity. If this pull request receives no comments in the next 14 days it will be closed. Maintainers can also remove the stale label.

To help this pull request get reviewed, please check that it is rebased onto the latest main and is passing automated checks. It also helps if you could reference an issue that the pull request resolves, and create one if it doesn't exist.

[pascal-hofmann]

This PR is not stale and already reviewed / approved.