[8.0] Migrate off of Fedora 39 container image

[mthalman]

The Helix config in 8.0 references a Fedora 39 image that doesn't even exist (nor has it ever):

https://github.com/dotnet/runtime/blob/c1ae962610643a3c17bcf9621017ac42ff7703f7/eng/pipelines/libraries/helix-queues-setup.yml#L65

https://github.com/dotnet/runtime/blob/c1ae962610643a3c17bcf9621017ac42ff7703f7/eng/pipelines/libraries/helix-queues-setup.yml#L71

This should be investigated to see whether it even needs to be defined. Are there no jobs that run this environment?