Drop FA dependency down to 5.0

Author: kevinkuszyk

src/FluentAssertions.AspNetCore.Mvc/FluentAssertions.AspNetCore.Mvc.csproj

@@ -25,7 +25,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="5.2.0" />
+    <PackageReference Include="FluentAssertions" Version="5.0.0" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.0.3" />
   </ItemGroup>
 

tests/FluentAssertions.AspNetCore.Mvc.Tests/FluentAssertions.AspNetCore.Mvc.Tests.csproj

@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="5.2.0" />
+    <PackageReference Include="FluentAssertions" Version="5.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.6.1" />
     <PackageReference Include="Moq" Version="4.8.2" />
     <PackageReference Include="xunit" Version="2.3.1" />