kernel_timeout_test: Add Apple to the list of slow platforms because
it runs on non-dedicated Kokoro

PiperOrigin-RevId: 558874605
Change-Id: Iba35f558ab8c967f98a3176af056e76341fb67c3
diff --git a/absl/synchronization/internal/kernel_timeout_test.cc b/absl/synchronization/internal/kernel_timeout_test.cc
index 92ed269..bc54671 100644
--- a/absl/synchronization/internal/kernel_timeout_test.cc
+++ b/absl/synchronization/internal/kernel_timeout_test.cc
@@ -47,11 +47,10 @@
 
 namespace {
 
-#if defined(ABSL_HAVE_ADDRESS_SANITIZER) || \
-    defined(ABSL_HAVE_MEMORY_SANITIZER) ||  \
-    defined(ABSL_HAVE_THREAD_SANITIZER) || \
-    defined(__ANDROID__) || \
-    defined(_WIN32) || defined(_WIN64)
+#if defined(ABSL_HAVE_ADDRESS_SANITIZER) ||                        \
+    defined(ABSL_HAVE_MEMORY_SANITIZER) ||                         \
+    defined(ABSL_HAVE_THREAD_SANITIZER) || defined(__ANDROID__) || \
+    defined(__APPLE__) || defined(_WIN32) || defined(_WIN64)
 constexpr absl::Duration kTimingBound = absl::Milliseconds(5);
 #else
 constexpr absl::Duration kTimingBound = absl::Microseconds(250);