Updated .NET 6 the rest of the projects.

Author: marisks

src/Geta.NotFoundHandler.Admin/Geta.NotFoundHandler.Admin.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <AddRazorSupportForMvc>true</AddRazorSupportForMvc>
     <PackageId>Geta.NotFoundHandler.Admin</PackageId>
     <Title>Admin UI for NotFound Handler for ASP.NET Core and EPiServer</Title>

src/Geta.NotFoundHandler/Geta.NotFoundHandler.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <PackageId>Geta.NotFoundHandler</PackageId>
     <Title>NotFound Handler for ASP.NET Core</Title>
     <Authors>Geta Digital</Authors>