[release-5.6] LOG-3499: add /var/log/oauth-server/audit.log to the log collection path

[openshift-cherrypick-robot]

This is an automated cherry-pick of #1857

/assign vparfonov

[openshift-ci]

@openshift-cherrypick-robot: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-claim-aws	c0214c9	link	false	/test e2e-claim-aws
ci/prow/e2e-ocp-previous	c0214c9	link	false	/test e2e-ocp-previous
ci/prow/e2e-ocp-next	c0214c9	link	false	/test e2e-ocp-next

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[jcantrill]

/approve
/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

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