golang, Bump to go 1.16.7

[RamLavi]

This PR bumps golang to 1.16.7

What this PR does / why we need it:

Special notes for your reviewer:

Release note:

NONE

[RamLavi]

/cherry-pick release-v0.31

[kubevirt-bot]

@RamLavi: once the present PR merges, I will cherry-pick it on top of release-v0.31 in a new PR and assign it to you.

In response to this:

/cherry-pick release-v0.31

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[ormergi]

It looks so easy hehe..

[RamLavi]

did the following locally:

kubemacpool (_bump_go_1.16) $ export GOFLAGS=-mod=vendor
kubemacpool (_bump_go_1.16) $ export GO111MODULE=on
kubemacpool (_bump_go_1.16) $ go version
go version go1.16.7 linux/amd64
kubemacpool (_bump_go_1.16) $ go mod tidy
kubemacpool (_bump_go_1.16) $ go mod vendor

[ormergi]

Now it looks like a go version bump ;)

[RamLavi]

/approve

[kubevirt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: RamLavi

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[kubevirt-bot]

@RamLavi: new pull request created: #334

In response to this:

/cherry-pick release-v0.31

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.