[kernel] Allow merging nnbd disabled + nnbd weak

Allow loading a dill that contains both nnbd disabled and nnbd weak.

Fixes https://github.com/flutter/flutter/issues/58126

Change-Id: Ic188bd1d377aa9d660e8803869713342f3a814c6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149424
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>

https://dart.googlesource.com/sdk/+/0f80f518595224dd092849368e634151dd36a97c
diff --git a/commits.json b/commits.json
index 4e0278f..7322e54 100644
--- a/commits.json
+++ b/commits.json
@@ -1,5 +1,5 @@
 {
   "external/github.com/flutter/engine":"c5d012900f7db0dc5dc9afb46f76d16b87915db0",
   "external/github.com/flutter/flutter":"a1636b6fef2ebe7840ba6dc1b3f9d77095ef3b45",
-  "sdk":"42b71b8f9e1dd8730e89321e760cd0579afc5125"
+  "sdk":"0f80f518595224dd092849368e634151dd36a97c"
 }
\ No newline at end of file