Update to latest test packages

Change-Id: I33d401f3393de6b055babb3bb3448ba328341ce1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/187580
Auto-Submit: Nate Bosch <nbosch@google.com>
Commit-Queue: Nate Bosch <nbosch@google.com>
Reviewed-by: Jake Macdonald <jakemac@google.com>

.dart_tool/package_config.json

@@ -11,7 +11,7 @@
     "constraint, update this by running tools/generate_package_config.dart."
   ],
   "configVersion": 2,
-  "generated": "2021-03-04T14:15:31.446260",
+  "generated": "2021-03-08T09:29:10.028585",
   "generator": "tools/generate_package_config.dart",
   "packages": [
     {

DEPS

@@ -159,7 +159,7 @@ vars = {
   "test_process_tag": "1.0.3",
   "term_glyph_rev": "6a0f9b6fb645ba75e7a00a4e20072678327a0347",
   "test_reflective_loader_rev": "54e930a11c372683792e22bddad79197728c91ce",
-  "test_rev": "bb98af3d17a821c28488ef8e2881e3ca173baf94",
+  "test_rev": "2cd8a4e774439447b01f9d381da020319a9808d8",
   "typed_data_tag": "f94fc57b8e8c0e4fe4ff6cfd8290b94af52d3719",
   "usage_rev": "6c64d9e7b6b3758d06d030efcb5afe20bfc04dde",
   "vector_math_rev": "0c9f5d68c047813a6dcdeb88ba7a42daddf25025",