Temporarily disable test_import.test_concurrency

Author: msimacek

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

@@ -15,7 +15,6 @@
 *graalpython.lib-python.3.test.test_import.__init__.GetSourcefileTests.test_get_sourcefile_no_source
 *graalpython.lib-python.3.test.test_import.__init__.ImportTests.test_bogus_fromlist
 *graalpython.lib-python.3.test.test_import.__init__.ImportTests.test_case_sensitivity
-*graalpython.lib-python.3.test.test_import.__init__.ImportTests.test_concurrency
 *graalpython.lib-python.3.test.test_import.__init__.ImportTests.test_delete_builtins_import
 *graalpython.lib-python.3.test.test_import.__init__.ImportTests.test_dll_dependency_import
 *graalpython.lib-python.3.test.test_import.__init__.ImportTests.test_double_const

mx.graalpython/mx_graalpython.py

@@ -374,6 +374,8 @@ def update_unittest_tags(args):
         # These tests are *inconsistently* triggering IllegalStateException("Coverage Tracker is already tracking") in com.oracle.truffle.tools.coverage.CoverageTracker. Race condition?
         ('test_trace.txt', '*graalpython.lib-python.3.test.test_trace.TestCommandLine.test_run_as_module'),
         ('test_trace.txt', '*graalpython.lib-python.3.test.test_trace.TestCommandLine.test_sys_argv_list'),
+        # Temporarily disabled due to transient failures (GR-30641)
+        ('test_import.txt', '*graalpython.lib-python.3.test.test_import.__init__.ImportTests.test_concurrency'),
     }
 
     result_tags = linux_tags & darwin_tags - tag_blacklist