Update Injectio.Tests.csproj

Author: pwelter34

tests/Injectio.Tests/Injectio.Tests.csproj

@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="8.0.1" />
+    <PackageReference Include="FluentAssertions" Version="[7.1.0]" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="PolySharp" Version="1.15.0">
       <PrivateAssets>all</PrivateAssets>