Issue title: Set no shallow clone for tenacity
 Issue body: As noted in https://github.com/rtfd/readthedocs.org/issues/5031, I'm asking to disable shallow clone for tenacity.

We're using [reno](https://docs.openstack.org/reno/latest/) to maintain our release notes and shallow clone breaks it.

Thanks!
 Comments: 
 Comment 0: Done
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