Chore: Bump example/Playground packages

Author: rydmike

example/pubspec.lock

@@ -371,10 +371,10 @@ packages:
     dependency: "direct main"
     description:
       name: shared_preferences
-      sha256: "95f9997ca1fb9799d494d0cb2a780fd7be075818d59f00c43832ed112b158a82"
+      sha256: "3c7e73920c694a436afaf65ab60ce3453d91f84208d761fbd83fc21182134d93"
       url: "https://pub.dev"
     source: hosted
-    version: "2.3.3"
+    version: "2.3.4"
   shared_preferences_android:
     dependency: transitive
     description:

example/pubspec.yaml

@@ -48,7 +48,7 @@ dependencies:
   # FlexSeedScheme package, by Mike Rydstrom, rydmike.com (@rydmike).
   # Used by the playground app to compute and display tonal palettes.
   # https://pub.dev/packages/flex_seed_scheme
-  flex_seed_scheme: ^3.4.1
+  flex_seed_scheme: ^3.5.0
 
   # The Flutter SDK, by Google flutter.dev.
   flutter:
@@ -89,7 +89,7 @@ dependencies:
   # Store value pair shared preference data, by Google flutter.dev.
   # Used as value-key pair persistence service in example 3.
   # https://pub.dev/packages/shared_preferences
-  shared_preferences: ^2.3.3
+  shared_preferences: ^2.3.4
 
   # A class for parsing strings using a sequence of patterns.
   # By the Dart team, tools.dart.dev