[ja] Translate website/content/en/docs/tasks/administer-cluster/manage-resources/cpu-default-namespace.md into Japanese

[shmza]

This is a Feature Request

What would you like to be added

Translate website/content/en/docs/tasks/administer-cluster/manage-resources/cpu-default-namespace.md into Japanese language.
Target page: https://kubernetes.io/docs/tasks/administer-cluster/manage-resources/cpu-default-namespace/

Why is this needed

This doc has not been translated into Japanese language yet.

Comments

/language ja
/assign

[kfess]

/area localization
/triage accepted