[release] Anitya v0.12.0

[Jeremy Cline]

Hi folks,

I've tagged Anitya v0.12.0[0]. I don't have access to the PyPI project
and it's not packaged for the Fedora repository, so it's only available
from GitHub at the moment. I don't have an ETA for when it's deployed to
Fedora's infrastructure, either.


[0] https://anitya.readthedocs.io/en/0.12.0/release-notes.html

-- 
Jeremy Cline
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IRC:  jcline