Actually start new development cycle #2077

Job	Run time
Check types using supported type checkers	21s
Build & verify package	19s
Verify dev env	12s
Tests on pypy-3.10	19s
Run doctests & render changelog	20s
Tests & Mypy on 3.13	1m 2s
Tests & Mypy on 3.12	1m 6s
Tests & Mypy on 3.14	1m 2s
Tests & Mypy on 3.11	1m 2s
Tests & Mypy on 3.10	1m 10s
Tests & Mypy on 3.9	42s
Combine & check coverage	13s
required-checks-pass	5s
	7m 53s

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