Fix vim test keystroke (#28406)

I wrote the test wrongly in
https://github.com/zed-industries/zed/pull/28005:

It should be `$` instead of `shift-4`, so it was just yanking from the
middle of the line instead of the newline character. Fixed it and
regenerated it.

Release Notes:

- N/A

crates/vim/src/visual.rs

@@ -1155,8 +1155,7 @@ mod test {
                     fox ˇjumps over
                     the lazy dog"})
             .await;
-        cx.simulate_shared_keystrokes("shift-v shift-4 shift-y")
-            .await;
+        cx.simulate_shared_keystrokes("shift-v $ shift-y").await;
         cx.shared_state().await.assert_eq(indoc! {"
                     The quick brown
                     ˇfox jumps over

crates/vim/test_data/test_visual_yank.json

@@ -36,7 +36,7 @@
 {"ReadRegister":{"name":"\"","value":"fox jumps over\nthe lazy dog\n"}}
 {"Put":{"state":"The quick brown\nfox ˇjumps over\nthe lazy dog"}}
 {"Key":"shift-v"}
-{"Key":"shift-4"}
+{"Key":"$"}
 {"Key":"shift-y"}
 {"Get":{"state":"The quick brown\nˇfox jumps over\nthe lazy dog","mode":"Normal"}}
 {"ReadRegister":{"name":"\"","value":"fox jumps over\n"}}