feat: Implement dymamic versioning

[s-vitaliy]

Resolves #446

Implemented

• Adopted plugin https://github.com/mtkennerly/poetry-dynamic-versioning from the issue above

The plugin generates version based on git tags:

$ poetry build
Building dataclasses-json (0.5.14.post3.dev0+ebe887f)
  - Building sdist
  - Built dataclasses_json-0.5.14.post3.dev0+ebe887f.tar.gz
  - Building wheel
  - Built dataclasses_json-0.5.14.post3.dev0+ebe887f-py3-none-any.whl

Where 0.5.14 is the latest git tag, post3 - number of commits ahead of the tag and +ebe887f is git commit SHA.

The dev0 section added if the lates commit in HEAD is not the release tag.

For instance, if we will create new release tag locally, the plugin will build the following version:

$ git tag "v0.5.15"
$ poetry build
Building dataclasses-json (0.5.15)
  - Building sdist
  - Built dataclasses_json-0.5.15.tar.gz
  - Building wheel
  - Built dataclasses_json-0.5.15-py3-none-any.whl

• Removed steps that generating version in build pipeline

[github-actions[bot]]

Coverage Report

File	Stmts	Miss	Cover	Missing
dataclasses_json
cfg.py	51	4	92%	80, 84–86
core.py	235	10	96%	38–41, 51, 64, 66, 81, 83, 169, 197
mm.py	200	30	85%	33–36, 42–45, 53–56, 62–65, 88, 161–162, 167, 171, 175, 180, 184, 188, 196, 202, 207, 216, 221, 226, 235, 244–251
stringcase.py	25	3	88%	59, 76, 97
undefined.py	143	2	99%	24, 38
utils.py	128	36	72%	11–24, 44–49, 60–64, 74, 99–100, 108–109, 124–132, 158, 177, 202
tests
entities.py	220	2	99%	229, 235
test_annotations.py	81	42	48%	50–67, 78–102, 106–122
test_api.py	142	4	97%	88, 99, 139–140
test_str_subclass.py	22	1	95%	9
test_union.py	98	10	90%	87–94, 108–115
TOTAL	2476	144	94%

Tests	Skipped	Failures	Errors	Time
291	3 :zzz:	0 :x:	0 :fire:	6.852s :stopwatch:

[s-vitaliy]

@george-zubrienko, take a look. I think we can adopt this plugin in SneaksAndData and use it to build development versions of our python packages as we do for our dotnet packages.

[s-vitaliy]

@baldurmen, take a look at examples in the PR description, does it solve your issue?

[baldurmen]

It does, thank you.

[george-zubrienko]

Huge! :) thanks a lot both @baldurmen and @s-vitaliy