[pkg] Bump protobuf constraint for vm_service_protos

Change-Id: Ia6fb65bd11d38ede6238732fcb55fef455904871
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/418262
Auto-Submit: Slava Egorov <[email protected]>
Reviewed-by: Derek Xu <[email protected]>
Commit-Queue: Slava Egorov <[email protected]>

Author: mraleph

pkg/vm_service_protos/CHANGELOG.md

@@ -1,6 +1,6 @@
-## 1.1.0
+## 2.0.0
 
-- Widen the dependency constraint on `package:protobuf`.
+- Bump dependency constraint on `package:protobuf` to `>= 4.0.0`.
 - Introduce `EventCategory`, `EventName`, and `DebugAnnotationName` classes.
 - Add `eventCategories`, `eventNames`, `debugAnnotationNames` and
   `debugAnnotationStringValues` getters to `InternedData`.

pkg/vm_service_protos/pubspec.yaml

@@ -1,5 +1,5 @@
 name: vm_service_protos
-version: 1.1.0
+version: 2.0.0
 description: >-
   A library for decoding protos returned by a service implementing the Dart VM
   service protocol.
@@ -13,7 +13,7 @@ resolution: workspace
 
 dependencies:
   fixnum: ^1.0.0
-  protobuf: '>=3.0.0 <5.0.0'
+  protobuf: ">=4.0.0 <5.0.0"
 
 # We use 'any' version constraints here as we get our package versions from
 # the dart-lang/sdk repo's DEPS file. Note that this is a special case; the