Bump govmomi to v0.45.1

[zhanggbj]

What this PR does / why we need it:

• from v0.45.0 to v0.45.1

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

Special notes for your reviewer:

Release note:

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: zhanggbj

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• OWNERS [zhanggbj]

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[zhanggbj]

/hold
waiting for E2E test here team-cluster-api#73

/assign @DanielXiao
/assign @sbueringer
/assign @XudongLiuHarold

[sbueringer]

/lgtm

[zhanggbj]

team-cluster-api#73 E2E passed.

Merge it
/unhold