Merge pull request #136 from Workiva/batch/fea/narrow_dependency_vali…

…dator_range

Narrow dependency_validator range to avoid NNBD issue

pubspec.yaml

@@ -13,12 +13,12 @@ dependencies:
   react: ^6.0.1
   test: ^1.15.7
 dev_dependencies:
-  build_runner: '>=1.7.1 <3.0.0'
-  build_test: ">=0.10.9 <3.0.0"
-  build_web_compilers: '>=2.12.0 <4.0.0'
-  dependency_validator: '>=2.0.0 <4.0.0'
+  build_runner: ^2.1.2
+  build_test: ^2.1.3
+  build_web_compilers: ^3.0.0
+  dependency_validator: ^3.2.2
   pedantic: ^1.8.0
 
 dependency_validator:
   ignore:
-    - meta # until we can remove the pin on meta
+    - meta # until we can remove the pin on meta