Use towncrier to generate release notes

[terencehonles]

Fixes #535 and superceeds #546

[codecov]

Codecov Report

Merging #548 (4cfc688) into master (dcab2a1) will decrease coverage by 0.5%.
The diff coverage is n/a.

❗ Current head 4cfc688 differs from pull request most recent head aa8664d. Consider uploading reports for the commit aa8664d to get more accurate results

@@           Coverage Diff            @@
##           master    #548     +/-   ##
========================================
- Coverage    83.8%   83.4%   -0.4%     
========================================
  Files          21      20      -1     
  Lines        1175    1157     -18     
  Branches       60      60             
========================================
- Hits          984     964     -20     
- Misses        185     187      +2     
  Partials        6       6             

Flag	Coverage Δ
mypy	33.0% <ø> (-0.7%)	⬇️
tests	82.5% <ø> (-0.6%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
django_redis/serializers/pickle.py	89.5% <0.0%> (-10.5%)	⬇️
django_redis/compressors/zstd.py

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update dcab2a1...aa8664d. Read the comment docs.

[terencehonles]

Adds a warning that a changelog entry has not been added to the commit/PR

[terencehonles]

Renamed to CHANGELOG.rst as done in #546 and reformatted to match the changelog output generated by towncrier

[terencehonles]

Slimed down the configuration in #546 to use more defaults and used the existing types, but gave them new names

[WisdomPill]

I am not very familiar with the tool but for me it looks okay.
More complete than the other PR

[terencehonles]

I am not very familiar with the tool but for me it looks okay.
More complete than the other PR

@WisdomPill we don't have anything that documents the release steps, right? The task towncrier build will need to be run in order to update the changelog and remove the fragments for release. I'm not sure where we should put that, but maybe it should be part of #512

[WisdomPill]

you are probably right about #512, maybe @jezdez has something to say about that?

[jezdez]

FWIW I don't have experience with towncrier (although I know a few projects that use it). If you feel comfortable using it, I don't mind if you're generating the changelog this way. It's up to the project leads, really.

[terencehonles]

I added the steps in the file RELEASING.rst. In #512 would be too late since the release would already be tagged, and I contemplated creating another workflow that would create a PR, but that would not be obvious that the workflow existed so I figured I'd just document the steps and we can adjust them in the future if needed.

[terencehonles]

I added news fragments for pretty much everything since the last release (anything relevant to put in the change log)