Update to .NET 8

Author: gfoidl

Directory.Build.props

@@ -9,7 +9,7 @@
         <Authors>gfoidl</Authors>
         <Company>Foidl Günther</Company>
         <Product>trx2junit</Product>
-        <Copyright>Copyright © Foidl Günther 2017-2022</Copyright>
+        <Copyright>Copyright © Foidl Günther 2017-2024</Copyright>
         <VersionPrefix>$(VersionMajor).$(VersionMinor).$(VersionPatch)</VersionPrefix>
         <AssemblyVersion>$(VersionMajor).$(VersionMinor).$(BuildNumber).$(VersionPatch)</AssemblyVersion>
     </PropertyGroup>

ReadMe.md

@@ -83,10 +83,9 @@ echo 'export PATH="$PATH:/root/.dotnet/tools"' >> "$BASH_ENV"
 ### Prequisites / Supported SDKs
 
 In order to install this tool a [.NET SDK](https://dotnet.microsoft.com/download/dotnet) must be present. Supported SDKs are:
+* .NET 8.0
 * .NET 7.0
 * .NET 6.0
-* .NET 5.0
-* .NET Core 3.1
 
 # Core functionality as standalone package trx2junit.Core