fix: Fix value of the private dockerhub repository in the container

Created by: harrisonliu5

Signed-off-by: harrisonliu5 harrisonliu@kubesphere.io

What type of PR is this?

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #https://github.com/kubesphere/kubesphere/issues/4703

Special notes for reviewers:

https://user-images.githubusercontent.com/17872673/159669828-81299885-22fe-43f5-9843-c91d2b1036fe.mp4

Does this PR introduced a user-facing change?

Fix The repository will switch to the dockerhub even though we have set the private registry.

Additional documentation, usage docs, etc.: