Update ktlintPlugin to v12 (major)

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jlleitschuh.gradle.ktlint	11.6.1 -> 12.0.2
org.jlleitschuh.gradle:ktlint-gradle	11.6.1 -> 12.0.2

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