Ability use vault plugin in combination with other plugins that require credentials

We have a Git-repository we want to build on Jenkins. The repository requires login, and we want to be able to use Vault to store the credentials, to be able to rotate the passwords.

Currently, there seems there is no way of providing credentials from Vault to e.g. Bitbucket source plugin.  Our usecase is a service account defined by a username and password from a Vault managed AD-account, which has the privileges to checkout and tag in a Bitbucket repository.

Such functionality would be greatly appriciated. If there do exist some way of making the two plugins play well together already, an update of the documentation would be helpful.