[infra] Update checked in SDKs to 2.1.1-dev.1.0

See #35435.

TBR=whesse@google.com

Change-Id: I2b4db6c6c51619f94c93bf667f5ec5d15675a5e3
Reviewed-on: https://dart-review.googlesource.com/c/89362
Reviewed-by: Alexander Thomas <athom@google.com>
Commit-Queue: Alexander Thomas <athom@google.com>

DEPS

diff --git a/DEPS b/DEPS
index 2798d2c..f44b9ec 100644
--- a/DEPS
+++ b/DEPS
@@ -161,7 +161,7 @@
       "packages": [
           {
               "package": "dart/dart-sdk/${{platform}}",
-              "version": "version:2.1.1-dev.0.1",
+              "version": "version:2.1.1-dev.1.0",
           },
       ],
       "dep_type": "cipd",