Fix floating version

Include prereleases.

See https://github.com/NuGet/Home/wiki/Support-pre-release-packages-with-floating-versions.

Author: martincostello

examples/net8.0/aspnetcore/aspnetcore.csproj

@@ -23,7 +23,7 @@
   </ItemGroup>
 
   <ItemGroup Condition=" '$(BuildDistroFromSource)' == 'false' ">
-    <PackageReference Include="Grafana.OpenTelemetry" Version="*" />
+    <PackageReference Include="Grafana.OpenTelemetry" Version="*-*" />
   </ItemGroup>
 
 </Project>