Updated bonsoir package to ^5.1.1

[guyluz11]

Tested running on Linux desktop

$ flutter --version
Flutter 3.16.2 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 9e1c857886 (3 days ago) • 2023-11-30 11:51:18 -0600
Engine • revision cf7a9d0800
Tools • Dart 3.2.2 • DevTools 2.28.3

Fix: #41 #40 #38

[guyluz11]

Hey can you check my pr's?.
I am working on volume up and down methods and prefer not to have so many branches.

[johnvuko]

Hello,
I've release a new version 2.1.0 without the upper limit for bonsoir.