Disable invalid CWD test on Windows

tests/tests.rs

@@ -2118,6 +2118,7 @@ fn test_strip_cwd_prefix() {
 /// When fd is ran from a non-existent working directory, but an existent
 /// directory is passed in the arguments, it should still run fine
 #[test]
+#[cfg(not(windows))]
 fn test_invalid_cwd() {
     let te = TestEnv::new(&[], &[]);