refectorying: Used fmt.Errorf() instead of errors.New()

[yj-yoo]

• In the next article, we recommend fmt.Errorf() when errors require formatting and use errors.New() for static error messages. (https://www.digitalocean.com/community/tutorials/how-to-add-extra-information-to-errors-in-go)

What type of PR is this? /kind cleanup

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind api-change /kind bug /kind cleanup /kind design /kind documentation /kind failing-test /kind feature /kind flake

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

none

[antmoveh]

/lgmt

[antmoveh]

/approve