Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Fix kubectl completion so that file names are listed
**What this PR does / why we need it**:
This PR fixes kubectl completion so that file names are listed with `--filename`. I tested in bash and zsh. This problem is caused by spf13/cobra#520, so I updates vendor github.com/spf13/cobra to just before that commit.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#60517
**Special notes for your reviewer**: @janetkuo @mengqiy @eparis
**Release note**:
```release-note
NONE
```
6605b0a645