Use specific command name instead of generic `init-container-command` in plugin-registry devfiles

[benoitf]

Is your enhancement related to a problem? Please describe.

Today, plugin-registry is generating from meta.yaml files devfile.yaml but they all have init-container-command as command name. So there is high risk of conflict.

Describe the solution you'd like

We should generate specific name like init-remote-runtime-injector instead of the same name

Describe alternatives you've considered

make specific command when #19034 is implemented

Additional context

[benoitf]

fixed by eclipse-che/che-plugin-registry#914