dev dep: latest build_web_compilers (#237)

Author: kevmoo

pubspec.yaml

@@ -18,7 +18,7 @@ dependencies:
 dev_dependencies:
   build_runner: ^1.0.0
   build_version: ^2.0.0
-  build_web_compilers: ^0.4.0
+  build_web_compilers: ^1.0.0
   collection: ^1.2.0
   expected_output: ^1.2.1
   html: '>=0.12.2 <0.14.0'