fix(deps): update dependency flutter_web_auth to ^0.6.0 (#72)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pubspec.yaml

@@ -17,7 +17,7 @@ dependencies:
   jose: ^0.3.2
   json_annotation: ^4.6.0
   path: ^1.8.1
-  flutter_web_auth: ^0.5.0
+  flutter_web_auth: ^0.6.0
   collection: ^1.17.1
 
 dev_dependencies: