chore: update mason to 0.1.0-dev.50 (#15)

* chore: update mason 0.1.0-dev.50

* chore: remove double ""

Author: alestiago

brick.yaml

@@ -4,7 +4,7 @@ repository: https://github.com/VeryGoodOpenSource/flutter_web_preloader
 version: 0.1.0
 
 environment:
-  mason: ">=0.1.0-dev.41 <0.1.0"
+  mason: ">0.1.0-dev.50= <0.1.0"
 
 vars:
   project_title:

hooks/pubspec.yaml

@@ -4,7 +4,7 @@ environment:
   sdk: ">=2.17.0 <3.0.0"
 
 dependencies:
-  mason: ^0.1.0-dev.41
+  mason: ^0.1.0-dev.50
   yaml: ^3.1.1
 
 dev_dependencies: