System.Text.Json version conflict fix

Author: i4004

src/Simplify.Web.Postman/Simplify.Web.Postman.csproj

@@ -26,6 +26,6 @@
 	</PropertyGroup>
 	<ItemGroup>
 		<PackageReference Include="Simplify.Web" Version="4.2.*" />
-		<PackageReference Include="System.Json" Version="4.7.*" />
+		<PackageReference Include="System.Text.Json" Version="4.7.*" />
 	</ItemGroup>
 </Project>