Bump version for 1.12 #9070

Job	Run time
Format Q# Files	51s
Clippy	1m 35s
Build and test (windows-latest)	11m 49s
Build and test (ubuntu-latest)	6m 6s
Format	14s
Integration tests (windows-latest)	13m 27s
Build and test (macos-14)	7m 29s
Integration tests (ubuntu-latest)	7m 47s
Rust Unit tests (windows-latest)	7m 31s
Integration tests (macos-14)	9m 22s
Rust Unit tests (ubuntu-latest)	4m 11s
Check web files	29s
Rust Unit tests (macos-14)	3m 25s
Status Check	0s
	1h 14m 16s

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