Latest Monitor 6.3 images not getting annotated as EOL

[mthalman]

The latest builds of the .NET Monitor 6.3 images are not annotated as EOL even though they technically should be since .NET 6 is EOL. The Dockerfiles still exist in the repo due to the 1-month grace period after EOL (and end-of-year extension). This does not get handled by the product EOL detection which reads the product EOL date from the releases.json file because that is for version 6.0 whereas Monitor is version 6.3. Perhaps this should be updated to match on any minor version since there are no minor versions to consider for the main .NET product anymore?

[lbussell]

[Triage] There are a couple of other ways we could solve this:

1. Mark an image EOL if it is based on an EOL image (that we produce)
2. Find a way to detect if a specific major-minor version of .NET Monitor is EOL.