[release-0.29] Add gopath to gitignore

[kubevirt-bot]

This is an automated cherry-pick of #293

/assign oshoval

None

[kubevirt-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: kubevirt-bot, oshoval
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[kubevirt-bot]

@kubevirt-bot: 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-e2e-ovs-cni	50c7683	link	true	/test pull-e2e-ovs-cni-0.29

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[oshoval]

ovs mirror failures only