Flutter stable 3.7.3

[Godofredo Contreras]

We are pleased to announce the release of Flutter 3.7.3 to the stable channel; this release contains hotfixes that address the following issues:

• flutter/119507 - Appbundle size increase of 90mb with flutter 3.7.0 without any change.
  
• flutter/119289 - [Impeller] ImageFilter.blur Edge sampling issue.
  
• flutter/119950 - [Impeller] improve blur performance for Android and iPad Pro.
  
• flutter/119190 - Fix lexer issue where select/plural/other/underscores cannot be in identifier names.

In order to get the latest, run ‘flutter upgrade’.

Thank you!