Ignore GC tests in test_memoryio, issue: GR-71890

Author: steve-s

graalpython/com.oracle.graal.python.test/src/tests/unittest_tags/test_memoryio.txt

@@ -7,7 +7,8 @@ test.test_memoryio.CBytesIOTest.test_bytes_array @ darwin-arm64,linux-aarch64,li
 test.test_memoryio.CBytesIOTest.test_detach @ darwin-arm64,linux-aarch64,linux-x86_64
 test.test_memoryio.CBytesIOTest.test_flags @ darwin-arm64,linux-aarch64,linux-x86_64
 test.test_memoryio.CBytesIOTest.test_flush @ darwin-arm64,linux-aarch64,linux-x86_64
-test.test_memoryio.CBytesIOTest.test_getbuffer_gc_collect @ darwin-arm64,linux-aarch64,linux-x86_64
+# GR-71890
+!test.test_memoryio.CBytesIOTest.test_getbuffer_gc_collect @ darwin-arm64,linux-aarch64,linux-x86_64
 test.test_memoryio.CBytesIOTest.test_getstate @ darwin-arm64,linux-aarch64,linux-x86_64
 test.test_memoryio.CBytesIOTest.test_getvalue @ darwin-arm64,linux-aarch64,linux-x86_64
 test.test_memoryio.CBytesIOTest.test_init @ darwin-arm64,linux-aarch64,linux-x86_64
@@ -89,7 +90,7 @@ test.test_memoryio.PyBytesIOTest.test_bytes_array @ darwin-arm64,linux-aarch64,l
 test.test_memoryio.PyBytesIOTest.test_detach @ darwin-arm64,linux-aarch64,linux-x86_64
 test.test_memoryio.PyBytesIOTest.test_flags @ darwin-arm64,linux-aarch64,linux-x86_64
 test.test_memoryio.PyBytesIOTest.test_flush @ darwin-arm64,linux-aarch64,linux-x86_64
-test.test_memoryio.PyBytesIOTest.test_getbuffer_gc_collect @ darwin-arm64,linux-aarch64,linux-x86_64
+!test.test_memoryio.PyBytesIOTest.test_getbuffer_gc_collect @ darwin-arm64,linux-aarch64,linux-x86_64
 test.test_memoryio.PyBytesIOTest.test_getvalue @ darwin-arm64,linux-aarch64,linux-x86_64
 test.test_memoryio.PyBytesIOTest.test_init @ darwin-arm64,linux-aarch64,linux-x86_64
 test.test_memoryio.PyBytesIOTest.test_instance_dict_leak @ darwin-arm64,linux-aarch64,linux-x86_64