CP bump DDS to fix DAP threadID integer parsing bug (flutter#139158)

CP request: flutter#139177
Upstream tracking issue: dart-lang/sdk#53086

Author: christopherfujino

packages/flutter_tools/pubspec.yaml

@@ -10,7 +10,7 @@ dependencies:
   archive: 3.3.2
   args: 2.4.2
   browser_launcher: 1.1.1
-  dds: 2.9.4
+  dds: 2.9.5
   dwds: 21.0.0
   completion: 1.0.1
   coverage: 1.6.3
@@ -112,4 +112,4 @@ dartdoc:
   # Exclude this package from the hosted API docs.
   nodoc: true
 
-# PUBSPEC CHECKSUM: 887b
+# PUBSPEC CHECKSUM: 537c