Warn when an EOL Runtime version is used

[jedcunningham]

• [x] I have checked that a similar feature request does not already exist.

✍️ Is your feature request related to a problem? Please describe.

If you use an EOL runtime version, you have no warnings at all that you are using an unsupported version.

🧩 Describe the solution you'd like

The runtime image feed now has an endOfSupport date. We should check the versions EOL date and warn when the image is out of support.

This would apply for local dev, Astro, and Software.

Is your feature request specific to a particular Astronomer Platform?

No, everywhere.