[Gradle] Suppress error about the deprecated old IC in FIR IC diagnos…

…tic test

Relates to KT-75107, KT-68597

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

@@ -74,6 +74,7 @@ class TaskExecutionDiagnosticsIT : KGPBaseTest() {
             gradleProperties.appendText(
                 """
                 |kotlin.incremental.jvm.fir=true
+                |kotlin.internal.suppressGradlePluginErrors=DeprecatedJvmHistoryBasedIncrementalCompilationDiagnostic
                 """.trimMargin()
             )
         }