[release-1.0] NO-JIRA: add andreasgerstmayr to owners

[openshift-cherrypick-robot]

This is an automated cherry-pick of #109

/assign PeterYurkovich

/cherrypick release-0.4 release-0.3

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: openshift-cherrypick-robot
Once this PR has been reviewed and has the lgtm label, please ask for approval from peteryurkovich. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[openshift-cherrypick-robot]

@openshift-cherrypick-robot: new pull request created: #111

In response to this:

This is an automated cherry-pick of #109

/assign PeterYurkovich

/cherrypick release-0.4 release-0.3

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-sigs/prow repository.