[Gradle][MPP] Mark sourceSet field as transient in CInteropMetadataDependencyTransformationTask

^KT-52726 Verification Pending

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/ConfigurationCacheIT.kt

@@ -95,7 +95,7 @@ class ConfigurationCacheIT : AbstractConfigurationCacheIT() {
             build("build", buildOptions = buildOptions) {
                 // Reduce the problem numbers when a Task become compatible with GCC.
                 // When all tasks support GCC, replace these assertions with `testConfigurationCacheOf`
-                assertOutputContains("16 problems were found storing the configuration cache, 6 of which seem unique.")
+                assertOutputContains("4 problems were found storing the configuration cache, 2 of which seem unique.")
                 configCacheIncompatibleTaskTypes.forEach { taskType ->
                     assertOutputContains(
                         """Task `\S+` of type `[\w.]+$taskType`: .+(at execution time is unsupported)|(not supported with the configuration cache)"""

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/native/internal/CInteropMetadataDependencyTransformationTask.kt

@@ -98,7 +98,7 @@ private fun CInteropMetadataDependencyTransformationTask.onlyIfSourceSetIsShared
 }
 
 internal open class CInteropMetadataDependencyTransformationTask @Inject constructor(
-    @get:Internal val sourceSet: DefaultKotlinSourceSet,
+    @Transient @get:Internal val sourceSet: DefaultKotlinSourceSet,
     @get:OutputDirectory val outputDirectory: File
 ) : DefaultTask() {