Bump version to `2.2.0dev0` #746

Job	Run time
build_windows (3.10)	8m 31s
build_windows (3.12)	10m 27s
build_windows (3.13)	9m 11s
build_windows (3.11)	8m 7s
build_linux (3.12)	2m 20s
build_linux (3.11)	2m 35s
build_linux (3.13)	2m 42s
build_linux (3.10)	2m 41s
test_linux (3.12, false, ubuntu-latest)	1m 57s
test_linux (3.11, false, ubuntu-latest)	1m 17s
test_linux (3.10, false, ubuntu-latest)	1m 50s
test_linux (3.13, false, ubuntu-latest)	2m 9s
test_windows (3.10, false, windows-latest)	3m 35s
test_windows (3.13, false, windows-latest)	3m 41s
test_windows (3.11, false, windows-latest)	3m 36s
test_windows (3.12, false, windows-latest)	4m 17s
	1h 8m 56s

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