⬆️ mock 1.3.0

[nikolas]

No description provided.

[giocalitri]

Thanks for your contribution.
Can you please provide some context in the description?

[coveralls]

Coverage remained the same at 98.442% when pulling 74eed4b on nikolas:patch-3 into c407bbb on mitodl:master.

[giocalitri]

I honestly think this requires more work:

We should al least upgrade the test_requirements.txt file as well, qui in general it would be great if setup.py loads the requirements from requirements.txt and test_requirements.txt instead of having duplicate lists.

[nikolas]

Yeah, I agree. I just updated this because it happens to work and, in my day-to-day work, if a newer version of a test library produces passing tests, it might as well be merged. But I understand if you'd rather do a more complete overhaul of the test dependencies instead.