Disable without cwd tests

Summary: These are finicky tests... we've disabled them on 3.10, tried working around them in D78451351, this just disables them entirely... they're kind of esoteric.

Reviewed By: yoney

Differential Revision: D85999323

fbshipit-source-id: 45ff4e475741ec7b45d3d9114c6d8da871e6acbe

Author: DinoV

cinderx/TestScripts/cinder_skip_test.txt

@@ -112,3 +112,7 @@ test.test_code.CoExtra.*
 test.test_sysconfig.TestSysConfig.test_sysconfigdata_json
 test.test_sysconfig.TestSysConfig.test_EXT_SUFFIX_in_vars
 test.test_sysconfig.TestSysConfig.test_soabi
+
+# these esoteric tests fail on some versions
+test.test_subprocess.ProcessTestCase.test_executable_without_cwd
+test.test_subprocess.ProcessTestCaseNoPoll.test_executable_without_cwd