Bump Gradle API to 8.0

^KT-55624 Fixed

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/compilerRunner/KotlinToolRunner.kt

@@ -13,7 +13,6 @@ import org.gradle.api.model.ObjectFactory
 import org.gradle.process.ExecOperations
 import org.gradle.process.ExecResult
 import org.gradle.process.JavaExecSpec
-import org.gradle.util.GradleVersion
 import org.jetbrains.kotlin.konan.target.HostManager
 import java.io.File
 import java.lang.reflect.InvocationTargetException
@@ -159,9 +158,7 @@ abstract class KotlinToolRunner(
         )
 
         executionContext.javaexec { spec ->
-            @Suppress("DEPRECATION")
-            if (GradleVersion.current() >= GradleVersion.version("7.0")) spec.mainClass.set(mainClass)
-            else spec.main = mainClass
+            spec.mainClass.set(mainClass)
             spec.classpath = classpath
             spec.jvmArgs(jvmArgs)
             spec.systemProperties(systemProperties)

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/KotlinUsages.kt

@@ -23,6 +23,10 @@ object KotlinUsages {
     const val KOTLIN_CINTEROP = "kotlin-cinterop"
     const val KOTLIN_SOURCES = "kotlin-sources"
 
+    // Following two constants were removed in Gradle 8.0 from 'Usages' class
+    private const val JAVA_RUNTIME_CLASSES = "java-runtime-classes"
+    private const val JAVA_RUNTIME_RESOURCES = "java-runtime-resources"
+
     val values = setOf(KOTLIN_API, KOTLIN_RUNTIME)
 
     private val jvmPlatformTypes: Set<KotlinPlatformType> = setOf(jvm, androidJvm)