Prepare v0.12.2

[Zeitsperre]

Pull Request Checklist:

• [ ] This PR addresses an already opened issue (for bug fixes / features)
  • This PR fixes issue #xyz
• [ ] Tests for the changes have been added (for bug fixes / features)
• [ ] Documentation has been added / updated (for bug fixes / features)
• [x] HISTORY.rst has been updated (with summary of main changes)
• [x] I have added my relevant user information to AUTHORS.md

What kind of change does this PR introduce?:

• Prepares the next patch release (21st December 2023)

Does this PR introduce a breaking change?:

No.

Other information:

[coveralls]

Pull Request Test Coverage Report for Build 7398475334

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall first build on prepare_v0122 at 72.348%

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Totals
Change from base Build 7398009361:	72.3%
Covered Lines:	1732
Relevant Lines:	2394

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💛 - Coveralls