API to Remove Undeployed Versions

[canny]

It would be useful to be able to prune undeployed versions (optionally filtered by pactipant id and/or environment id) from the deployed_versions table via a REST API and/or pact broker CLI. This table can grow quite large and there is currently no safe way to prune it.

https://pact.canny.io/admin/board/feature-requests/p/api-to-remove-undeployed-versions

[canny]

This issue has been linked to a Canny post: API to Remove Undeployed Versions 🎉