master: update release-tools

[pohly]

Squashed 'release-tools/' changes from d7146c7..71c810a

71c810ab Merge pull request #161 from pohly/mock-test-fixes
9e438f8e prow.sh: fix mock testing

git-subtree-dir: release-tools
git-subtree-split: 71c810a

NONE

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: pohly

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• release-tools/OWNERS [pohly]

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[k8s-ci-robot]

@pohly: The following test failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
pull-kubernetes-csi-csi-driver-host-distributed-on-kubernetes-1-21	9f62c4f	link	/test pull-kubernetes-csi-csi-driver-host-distributed-on-kubernetes-1-21

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[jsafrane]

/lgtm