[GR-38650] Filter transient poplib failures

Author: timfel

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

@@ -50,8 +50,6 @@
 *graalpython.lib-python.3.test.test_poplib.TestPOP3_TLSClass.test_exceptions
 *graalpython.lib-python.3.test.test_poplib.TestPOP3_TLSClass.test_getwelcome
 *graalpython.lib-python.3.test.test_poplib.TestPOP3_TLSClass.test_list
-*graalpython.lib-python.3.test.test_poplib.TestPOP3_TLSClass.test_noop
-*graalpython.lib-python.3.test.test_poplib.TestPOP3_TLSClass.test_pass_
 *graalpython.lib-python.3.test.test_poplib.TestPOP3_TLSClass.test_quit
 *graalpython.lib-python.3.test.test_poplib.TestPOP3_TLSClass.test_retr
 *graalpython.lib-python.3.test.test_poplib.TestPOP3_TLSClass.test_rpop

mx.graalpython/mx_graalpython.py

@@ -417,6 +417,8 @@ def update_unittest_tags(args):
         ('test_imaplib.txt', '*graalpython.lib-python.3.test.test_imaplib.NewIMAPSSLTests.test_valid_authentication_plain_text'),
         ('test_imaplib.txt', '*graalpython.lib-python.3.test.test_imaplib.NewIMAPTests.test_login_cram_md5_bytes'),
         ('test_imaplib.txt', '*graalpython.lib-python.3.test.test_imaplib.NewIMAPTests.test_login_cram_md5_plain_text'),
+        ('test_poplib.txt', '*graalpython.lib-python.3.test.test_poplib.TestPOP3_TLSClass.test_noop'),
+        ('test_poplib.txt', '*graalpython.lib-python.3.test.test_poplib.TestPOP3_TLSClass.test_pass_'),
         ('test_weakref.txt', '*graalpython.lib-python.3.test.test_weakref.MappingTestCase.test_weak_keyed_len_cycles'),
         # Disabled since code object comparison is not stable for us
         ('test_marshal.txt', '*graalpython.lib-python.3.test.test_marshal.InstancingTestCase.testModule'),