Git Sync support extended to other Git hosts

### Resource Name

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### Details

Hi
I would like to request support for Git Sync extended to other Git hosts beyond the currently supported list, please :)

The current [CFN doco](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/git-sync.html) says
`Git sync supports [GitHub], [GitHub Enterprise], [GitLab], and [Bitbucket] repositories.`

Specifically, I'd like to see Git Sync support [Oracle VBS]. VBS supports [SSH access and PAT (via header bearer)](https://docs.oracle.com/en/cloud/paas/visual-builder/visualbuilder-manage-development-process/manage-source-code-files-git.html#GUID-EBE9ED5C-D49E-43D6-8928-F01F8BFBAE89).

The Gitops tool Flux supports ["generic" Git hosts](https://fluxcd.io/flux/installation/bootstrap/generic-git-server/) as well as specific hosts like Gitea, Azure Devops, Gitlab, Github, etc.
It would be great if the Git host support for CFN Git Sync was widened - I'd like to use it.

Thanks!

Start by reviewing the current CloudFormation Git Sync documentation and the linked Oracle VBS source-control documentation. Compare the currently supported Git hosts and authentication methods with Oracle VBS's SSH and PAT options. Done means Git Sync support is extended to Oracle VBS or a defined generic-host path, with the supported configuration documented.

Written by the indexing model from the issue text.