Merge pull request #921 from microsoft/zengin/fix-verify-dependabot

remove explicit nuget reference to Verify for streamlining dependabot PRs

Author: zengin

test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj

@@ -20,7 +20,6 @@
     <PackageReference Include="Moq" Version="4.18.1" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="SharpYaml" Version="1.9.2" />
-    <PackageReference Include="Verify" Version="17.1.6" />
     <PackageReference Include="Verify.Xunit" Version="17.1.6" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">