fix(android): migrate detekt block + task types to 2.0 DSL

Three breaking changes I missed when bumping to 2.0.0-alpha.3:

  1. Gradle plugin id changed: io.gitlab.arturbosch.detekt -> dev.detekt
  2. Task FQN changed: io.gitlab.arturbosch.detekt.Detekt
     -> dev.detekt.gradle.Detekt
     (same for DetektCreateBaselineTask)
  3. jvmTarget is now a Property API (.set("17")) instead of var assignment

Also dropped `autoCorrect` from the detekt {} block — it's not in the
2.0 options list per the official getting-started docs.

Per the 2.0 release notes: "the workaround of disabling the new DSL
and built-in Kotlin via gradle.properties for AGP 9.x projects is no
longer required" — so our existing AGP 9 + built-in-Kotlin setup is
expected to work cleanly with detekt 2.0.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

android/gradle/libs.versions.toml

@@ -86,4 +86,4 @@ ksp = { id = "com.google.devtools.ksp", version.ref = "ksp" }
 hilt = { id = "com.google.dagger.hilt.android", version.ref = "hilt" }
 compose-compiler = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
 ktlint = { id = "org.jlleitschuh.gradle.ktlint", version.ref = "ktlint-gradle" }
-detekt = { id = "io.gitlab.arturbosch.detekt", version.ref = "detekt" }
+detekt = { id = "dev.detekt", version.ref = "detekt" }