php: Update Pest tree-sitter queries to capture single quotes (#12467)

Improved PHP Pest outline and runnables to support single quoted
arguments
([#12461](https://github.com/zed-industries/zed/issues/12461)).

Release Notes:

- N/A

| Before | After |
|--------|--------|
|
![image](https://github.com/zed-industries/zed/assets/428033/e0966510-da11-4a80-8901-7dba541ab721)
| ![CleanShot 2024-05-29 at 20 13
00@2x](https://github.com/zed-industries/zed/assets/428033/5f7ab492-2791-4a04-9ec3-f0adfa9b2986)
|
| ![CleanShot 2024-05-29 at 20 18
11@2x](https://github.com/zed-industries/zed/assets/428033/ac6bf58b-4e7d-410d-af51-328c41a76ba0)
| ![CleanShot 2024-05-29 at 20 14
35@2x](https://github.com/zed-industries/zed/assets/428033/1d226bb8-f102-4171-906d-e122ab8299cf)
|
436a8fa0ceSean Washington committed on 5/30/2024, 2:37:41 PM· committed by GitHubparent55c4730
2 files changedLine totals unavailable