Bumpver

- Fix [200][gh_i200]: Fix compatability with packaging 23.0.
- Fix [203][gh_i203]: Add dev to the list of valid release tags

[gh_i200]: https://github.com/mbarkhau/bumpver/issues/200
[gh_i203]: https://github.com/mbarkhau/bumpver/issues/203

Thank you [Sharon Yogev](https://github.com/sharonyogev) for your contribution.

- Fix [196][gh_i196]: Add `--pin-increments`.

[gh_i196]: https://github.com/mbarkhau/bumpver/issues/196

Thank you [Markus Holtermann](https://github.com/MarkusH) for
this contribution.

- Fix [190][gh_i190]: Allow multiple patterns on the same line

- Fix [182][gh_i182]: Use quotes for vcs commands

[gh_i190]: https://github.com/mbarkhau/bumpver/issues/190
[gh_i182]: https://github.com/mbarkhau/bumpver/issues/182

- Fix [181][gh_i181]: Enable use of ``^$`` charachters to restrict
matching to beginning and end of line.
- Add ``GITHASH`` to ``version_pattern`` (mpasternak)

[gh_i181]: https://github.com/mbarkhau/bumpver/issues/181

- Fix: [incorrect version comparison when updating from vcs tag][gh_i174].

When comparing the updated version to the latest vcs tag,
an insufficient string comparison was used instead of
comparing the parsed versions.

[gh_i174]: https://github.com/mbarkhau/bumpver/issues/174

Thank you to Timo Ludwig timoludwig for this contribution.

- Fix: [use default date values][gh_i172].

When parsing the current version, if it doesn't specify anyt
date part, (such as is the case for e.g. SemVer), then use the
current date to populate default parts.

This enables updating YYYY patterns in copyright headers even
for projects that don't use a CalVer pattern.

Thank you [Benjamin Depardon (bdepardo)][gh_bdepardo] for
finding and reporting this issue.

[gh_i172]: https://github.com/mbarkhau/bumpver/issues/172
[gh_bdepardo]: https://github.com/bdepardo