title: how can I use flutter_test from sdk and the package test? what version of test uses test_api 0.4.3?
body: <p>I am trying to run some basic unit test for my flutter app.  But when I run pub get I get the following error after including <strong>test: 1.20.0</strong> in my pubspec:</p>
  <pre><code>dev_dependencies:
    dependency_validator: ^3.1.0 # run flutter pub run dependency_validator
    #integration_test:
    #  sdk: flutter
    flutter_test:
      sdk: flutter
    test: ^1.20.0 
  </code></pre>
  <p>so when I run <code>f pub get</code> I see:</p>
  <pre><code>    Because test &gt;=1.20.0 depends on test_api 0.4.9 and every version of flutter_test from sdk depends on test_api 0.4.3, test &gt;=1.20.0 is incompatible with flutter_test from sdk.
      So, because myapp depends on both flutter_test from sdk and test ^1.20.0, version solving failed.
      pub get failed (1; So, because myapp depends on both flutter_test from sdk and test ^1.20.0, version solving failed.)```
  
  What version of test uses test_api  0.4.3?
  </code></pre>