build(deps): update sbt-ci-release from 1.11.2 to 1.12.0 #5123

Job	Run time
sbt plugin integration tests (ubuntu-latest)	4m 56s
Mill plugin integration tests (windows-latest)	4m 56s
Test on JDK 25 (windows-latest)	4m 18s
Test on JDK 17 (windows-latest)	4m 28s
Mill plugin integration tests (ubuntu-latest)	3m 13s
Test formatting	25s
sbt plugin integration tests (windows-latest)	6m 32s
Test on JDK 17 (ubuntu-latest)	3m 27s
Test on JDK 25 (ubuntu-latest)	2m 9s
Test Maven plugin	2m 3s
release	-1s
	36m 26s

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