[TM-71] Update .cabal, add changelog
Description
I've updated some things in .cabal files and added a changelog. See commit messages for details.
Related issue(s)
https://issues.serokell.io/issue/TM-71
✅ Checklist for your Merge Request
Related changes (conditional)
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Tests
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If I added new functionality, I added tests covering it. -
If I fixed a bug, I added a regression test to prevent the bug from silently reappearing again.
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Documentation
Stylistic guide (mandatory)
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My commits comply with the following policy. -
My code complies with the style guide.