update unittest tags

Author: cosminbasca

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

@@ -11,3 +11,12 @@
 *graalpython.lib-python.3.test.test_multiprocessing_main_handling.ForkServerCmdLineTest.test_script_compiled
 *graalpython.lib-python.3.test.test_multiprocessing_main_handling.ForkServerCmdLineTest.test_zipfile
 *graalpython.lib-python.3.test.test_multiprocessing_main_handling.ForkServerCmdLineTest.test_zipfile_compiled
+*graalpython.lib-python.3.test.test_multiprocessing_main_handling.SpawnCmdLineTest.test_basic_script
+*graalpython.lib-python.3.test.test_multiprocessing_main_handling.SpawnCmdLineTest.test_basic_script_no_suffix
+*graalpython.lib-python.3.test.test_multiprocessing_main_handling.SpawnCmdLineTest.test_directory
+*graalpython.lib-python.3.test.test_multiprocessing_main_handling.SpawnCmdLineTest.test_directory_compiled
+*graalpython.lib-python.3.test.test_multiprocessing_main_handling.SpawnCmdLineTest.test_ipython_workaround
+*graalpython.lib-python.3.test.test_multiprocessing_main_handling.SpawnCmdLineTest.test_module_in_package_in_zipfile
+*graalpython.lib-python.3.test.test_multiprocessing_main_handling.SpawnCmdLineTest.test_package
+*graalpython.lib-python.3.test.test_multiprocessing_main_handling.SpawnCmdLineTest.test_package_compiled
+*graalpython.lib-python.3.test.test_multiprocessing_main_handling.SpawnCmdLineTest.test_zipfile