Fix version to 5.1.0 and update changelog for audio_streamer and Dart SDK

Author: iarata

packages/noise_meter/CHANGELOG.md

@@ -1,17 +1,9 @@
-## 5.2.0
+## 5.1.0
 
 - update to `audio_streamer: ^4.2.0`
 - update to dart SDK `3.8.1`
 - update gradle and kotlin versions in example app
 
-## 5.1.0
-
-- upgrading gradle version
-- upgrading agp version
-- upgrading kotlin version
-- changing gradle file structure
-- upgrading ios version
-
 ## 5.0.2
 
 - upgrade to `audio_streamer: ^4.0.0`

packages/noise_meter/pubspec.yaml

@@ -1,6 +1,6 @@
 name: noise_meter
 description: A Flutter plugin for collecting noise from the phone's microphone.
-version: 5.2.0
+version: 5.1.0
 homepage: https://github.com/cph-cachet/flutter-plugins/tree/master/packages/noise_meter
 
 environment: