2 flaky tests on ci

Author: enebo

test/mri/excludes/TestThread.rb

@@ -5,6 +5,8 @@
 exclude :test_handle_interrupt_and_p, "needs investigation"
 exclude :test_handle_interrupt_blocking, "needs investigation"
 exclude :test_handle_interrupt_invalid_argument, "needs investigation"
+exclude :test_handle_interrupted?, "flaky test"
+exclude :test_machine_stack_size, "flaky test"
 exclude :test_main_thread_status_at_exit, "needs investigation"
 exclude :test_main_thread_variable_in_enumerator, "needs investigation"
 exclude :test_mutex_interrupt, "needs investigation"