Feature: Add BitBucket Server (not Cloud) as supported GitOps provider

[u72z]

🔖 Feature description

Would be nice to support BitBucket Server as well. The configuration shouldn't be very different, but as far as I know BitBucket doesn't have the concept of Workspace, which is a mandatory field when configuring BitBucket (Cloud) as a GitOps provider.

https://en.wikipedia.org/wiki/Bitbucket
https://support.atlassian.com/migration/docs/differences-administering-bitbucket-data-center-and-cloud/

🎤 Pitch / Usecases

For the ones who want to host their GitOps repos on-prem, right now the only possibility is GitLab

🔄️ Alternative

The only alternative to have the GitOps on-prem is GitLab

👀 Have you spent some time to check if this issue has been raised before?

• I checked and didn't find similar issue

🏢 Have you read the Code of Conduct?

• I have read the Code of Conduct

AB#9134

[abhibhaw]

Fixed with attached PRs