Is your task related to a problem? Please describe

Custom certificates [1] are not automatically added to the Java trust store.
The approach suggested in [2] is not ideal, as it requires creating an additional ConfigMap and manually running a bash script.

[1] https://eclipse.dev/che/docs/stable/administration-guide/importing-untrusted-tls-certificates/
[2] https://eclipse.dev/che/docs/stable/end-user-guide/enabling-maven-artifact-repositories/

Describe the solution you'd like

• Automatically add certificates to a Java trust store in entrypoint of UDI. For script ideas, see [1] [2].
• Review [3] if we can improve something, clean up the doc.
• Fix verification steps in [4], to take into account different bundle mount path

[1] https://github.com/eclipse-che/che-server/blob/main/build/dockerfiles/entrypoint.sh#L360
[2] https://gist.github.com/tolusha/6c68d907a52d235b311f196478ce08b6
[3] https://eclipse.dev/che/docs/stable/end-user-guide/enabling-artifact-repositories-in-a-restricted-environment/
[4] https://eclipse.dev/che/docs/stable/administration-guide/importing-untrusted-tls-certificates/

Describe alternatives you've considered

No response

Additional context

No response