Automated cherry pick of #1103: Update go version to the latest

[msau42]

Cherry pick of #1103 on release-1.8.

#1103: Update go version to the latest

For details on the cherry pick process, see the cherry pick requests page.

[k8s-ci-robot]

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[k8s-ci-robot]

@msau42: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-gcp-compute-persistent-disk-csi-driver-sanity	67a71ca	link	true	/test pull-gcp-compute-persistent-disk-csi-driver-sanity

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[mattcary]

/lgtm

[mattcary]

Ah, we need to backport the sanity test fix to get the release-1.8 branch to pass.

That will be a pain so as this is just a golang update I'll force-merge.