Disable the other flaky tests (#26942)

I thought it might be just `test_file_status` this time, but it seems to
be all four of the tests that we were previously seeing issues with.

Release Notes:

- N/A

crates/worktree/src/worktree_tests.rs

@@ -845,7 +845,9 @@ async fn test_update_gitignore(cx: &mut TestAppContext) {
     });
 }
 
-#[gpui::test]
+// TODO fix flaky test
+#[allow(dead_code)]
+//#[gpui::test]
 async fn test_write_file(cx: &mut TestAppContext) {
     init_test(cx);
     cx.executor().allow_parking();
@@ -2625,7 +2627,9 @@ async fn test_file_status(cx: &mut TestAppContext) {
     });
 }
 
-#[gpui::test]
+// TODO fix flaky test
+#[allow(unused)]
+//#[gpui::test]
 async fn test_git_repository_status(cx: &mut TestAppContext) {
     init_test(cx);
     cx.executor().allow_parking();
@@ -2739,7 +2743,9 @@ async fn test_git_repository_status(cx: &mut TestAppContext) {
     });
 }
 
-#[gpui::test]
+// TODO fix flaky test
+#[allow(unused)]
+//#[gpui::test]
 async fn test_git_status_postprocessing(cx: &mut TestAppContext) {
     init_test(cx);
     cx.executor().allow_parking();