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>.

vclib: enable VM disk attach test

**What this PR does / why we need it**:

Follow up to PR #58534 , where this test was disabled due to a limitation in
govmomi/simulator.  The test passes as expected with godeps update of govmomi.

**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 #

**Special notes for your reviewer**:

This PR is 1-line update to the vSphere Cloud Provider tests and godep update of the vendor'd vmware/govmomi repo.

**Release note**:

```release-note
NONE
```