Add KGP tests task dependency on sample annotation processor install.

Kapt tests expected it to be available in maven local.

^KT-45745 In Progress

libraries/tools/kotlin-gradle-plugin-integration-tests/build.gradle.kts

@@ -264,6 +264,7 @@ tasks.withType<Test> {
 
     dependsOn(":kotlin-gradle-plugin:validatePlugins")
     dependsOnKotlinGradlePluginInstall()
+    dependsOn(":examples:annotation-processor-example:install")
 
     systemProperty("kotlinVersion", rootProject.extra["kotlinVersion"] as String)
     systemProperty("runnerGradleVersion", gradle.gradleVersion)