Update dependency org.jlleitschuh.gradle:ktlint-gradle to v12

Author: renovate[bot]

buildSrc/build.gradle.kts

@@ -16,7 +16,7 @@ dependencies {
     implementation(kotlin("gradle-plugin", libs.versions.kotlin.get()))
     implementation("dev.schlaubi", "gradle-plugin", "1.0.0")
     implementation("com.google.devtools.ksp", "com.google.devtools.ksp.gradle.plugin", libs.versions.ksp.get())
-    implementation("org.jlleitschuh.gradle", "ktlint-gradle", "11.4.0")
+    implementation("org.jlleitschuh.gradle", "ktlint-gradle", "12.1.1")
     implementation("com.github.gmazzo", "gradle-buildconfig-plugin", "3.1.0")
     implementation("gradle.plugin.com.google.cloud.artifactregistry", "artifactregistry-gradle-plugin", "2.2.1")
     implementation(gradleApi())