Create V6 version for Umbraco 13 (#43)

* Create V6 version for Umbraco 13

* Changes version number

Author: skttl

src/Skybrud.Umbraco.GridData/Skybrud.Umbraco.GridData.csproj

@@ -4,12 +4,12 @@
 
   <PropertyGroup>
     <LangVersion>11.0</LangVersion>
-    <TargetFrameworks>net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net8.0</TargetFrameworks>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <PropertyGroup>
-    <VersionPrefix>5.0.3</VersionPrefix>
+    <VersionPrefix>13.0.0</VersionPrefix>
     <VersionSuffix Condition="'$(Configuration)'=='Debug'">build$([System.DateTime]::UtcNow.ToString(`yyyyMMddHHmm`))</VersionSuffix>
     <Company>Limbo</Company>
     <Authors>Anders Bjerner, René Pjengaard</Authors>
@@ -32,8 +32,8 @@
   <!-- Include NuGet dependencies -->
   <ItemGroup>
     <PackageReference Include="Skybrud.Essentials" Version="1.1.50" />
-    <PackageReference Include="Umbraco.Cms.Core" Version="[10.0.0,12.999)" />
-    <PackageReference Include="Umbraco.Cms.Web.BackOffice" Version="[10.0.0,12.999)" />
+    <PackageReference Include="Umbraco.Cms.Core" Version="[13.0.0,13.999)" />
+    <PackageReference Include="Umbraco.Cms.Web.BackOffice" Version="[13.0.0,13.999)" />
   </ItemGroup>
 
   <!-- Include package icon for NuGet -->