fixup! feat: .net9 and ge6

Author: pmiossec

src/GitExtensions.AzureDevOpsCommitMessage/GitExtensions.AzureDevOpsCommitMessage.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0-windows</TargetFramework>
+    <TargetFramework>net9.0-windows</TargetFramework>
     <!--Value useless because will be overwritten by release GitHub action. Keep '0.0.0' so that the release process work well!-->
     <VersionPrefix>0.0.0</VersionPrefix>
     <PublishRepositoryUrl>true</PublishRepositoryUrl>