feat!: bump min Dart SDK to 2.19.0 (#56)

Author: alestiago

brick/brick.yaml

@@ -4,7 +4,7 @@ repository: https://github.com/VeryGoodOpenSource/very_good_dart_package
 version: 0.2.5
 
 environment:
-  mason: ">=0.1.0-dev.32 <0.1.0"
+  mason: ">=0.1.0-dev.49 <0.1.0"
 
 vars:
   project_name:

patches/pubspec_publish.patch

@@ -10,4 +10,4 @@ index 48792b7..999e3c8 100644
 +{{^publishable}}publish_to: none{{/publishable}}
 
  environment:
-   sdk: ">=2.18.0 <3.0.0"
+   sdk: ">=2.19.0 <3.0.0"

src/very_good_dart_package/analysis_options.yaml

@@ -1 +1 @@
-include: package:very_good_analysis/analysis_options.3.1.0.yaml
+include: package:very_good_analysis/analysis_options.4.0.0.yaml

src/very_good_dart_package/pubspec.yaml

@@ -4,9 +4,9 @@ version: 0.1.0+1
 publish_to: none
 
 environment:
-  sdk: ">=2.18.0 <3.0.0"
+  sdk: ">=2.19.0 <3.0.0"
 
 dev_dependencies:
   mocktail: ^0.3.0
   test: ^1.19.2
-  very_good_analysis: ^3.1.0
+  very_good_analysis: ^4.0.0