Bump tools to 24707e094cd761178eb76e725ce17f51e22fd442

Changes:
```
> git log --format="%C(auto) %h %s" 1b52e89..24707e0
 https://dart.googlesource.com/tools.git/+/24707e09 List directory failure (2151)
 https://dart.googlesource.com/tools.git/+/53a9f832 Windows DirectoryWatcher buffer exhaustion recovery workaround. (2149)
 https://dart.googlesource.com/tools.git/+/1195125e Consistent blank after => members in class-likes (2146)

```

Diff: https://dart.googlesource.com/tools.git/+/1b52e89e0b4ef70e004383c1cf781ad4182f380b..24707e094cd761178eb76e725ce17f51e22fd442/
Change-Id: I311f5fd9a89fc4beb3e5d67fe7781fecc49c44be
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/447340
Commit-Queue: Konstantin Shcheglov <[email protected]>
Reviewed-by: Konstantin Shcheglov <[email protected]>
Auto-Submit: Devon Carew <[email protected]>

Author: devoncarew

DEPS

@@ -147,7 +147,7 @@ vars = {
   "sync_http_rev": "c07f96f89a7eec7e3daac641fa6c587224fcfbaa",
   "tar_rev": "d511a1dc4f197a29bc06479f4614135abb168b6e",
   "test_rev": "5aef9719ad9b598260c062b2a90a50d2f50a78f3", # https://dart-review.googlesource.com/c/sdk/+/444360
-  "tools_rev": "1b52e89e0b4ef70e004383c1cf781ad4182f380b",
+  "tools_rev": "24707e094cd761178eb76e725ce17f51e22fd442",
   "vector_math_rev": "3939545edc38ed657381381d33acde02c49ff827",
   "web_rev": "ee9733fb51ead11d863a00497d721c5b627ac97d",
   "webdev_rev": "9724fea63ea642cbcf87bb6e43b4076681161a4f",