docs: add changelog and release notes for v25.12.2 #326

Job	Run time
identifiers / Build GitHub identifiers	14s
identifiers / Log resolved identifiers	4s
Build wheels on windows-2022 (x86_64)	23m 18s
Build wheels on macos-15 (arm64)	14m 19s
Build wheels on ubuntu-24.04 (x86_64)	21m 50s
	59m 45s

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