Bump test to 2b1ed13ea25c0dfcf112af676533e1daf906a3f0

Changes:
```
> git log --format="%C(auto) %h %s" ce3c8ca..2b1ed13
 https://dart.googlesource.com/test.git/+/2b1ed13e Add `@doNotSubmit` to `(test|group) solo:`... (2206)
 https://dart.googlesource.com/test.git/+/b1a34a98 support enabling experiments when using the dart2wasm compiler (2203)

```

Diff: https://dart.googlesource.com/test.git/+/ce3c8cac1d8e7f055d5443993ac6c0204da17a45..2b1ed13ea25c0dfcf112af676533e1daf906a3f0/
Change-Id: I0a1b5e29dcd6e936067a08c959ea06b8d63e8096
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/361720
Commit-Queue: Nate Bosch <nbosch@google.com>
Auto-Submit: Nate Bosch <nbosch@google.com>
Reviewed-by: Jake Macdonald <jakemac@google.com>
Reviewed-by: Matan Lurey <matanl@google.com>

DEPS

@@ -182,7 +182,7 @@ vars = {
   "sync_http_rev": "b849559fedc7c5d19a68950f255b6edde6eec6ef",
   "tar_rev": "6150a0c88d9bd17e3e961593a9a7a9564866e8b4",
   "term_glyph_rev": "2ad48ce95b6e6d001251d55b15719ee113caf802",
-  "test_rev": "ce3c8cac1d8e7f055d5443993ac6c0204da17a45",
+  "test_rev": "2b1ed13ea25c0dfcf112af676533e1daf906a3f0",
   "test_descriptor_rev": "b61cfb4479fafd78eb9d365cc2f7cdb43c2aed34",
   "test_process_rev": "94ee46d76f89ebb7d73cef3e23bab288b1e43b50",
   "test_reflective_loader_rev": "d7167a2375d8a0c02c12b960c059a115a777f238",