Update dependency NServiceBus.Transport.AzureServiceBus to 6.0.0 (#759)

Co-authored-by: dependencyupdates[bot] <218638057+dependencyupdates[bot]@users.noreply.github.com>

Author: dependencyupdates[bot]

src/AcceptanceTests.ASB/AcceptanceTests.ASB.csproj

@@ -17,7 +17,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="NServiceBus.Transport.AzureServiceBus" Version="6.0.0-alpha.5" />
+    <PackageReference Include="NServiceBus.Transport.AzureServiceBus" Version="6.0.0" />
     <PackageReference Include="System.IO.Hashing" Version="10.0.2" />
   </ItemGroup>