LOG-1471: Update ES to resolve CVE-2020-28491

[sasagarw]

Description

This PR:

• Fixes CVE-2020-28491.

/cc @jcantrill /assign @jcantrill

Links

• JIRA: https://issues.redhat.com/browse/LOG-1471

[sasagarw]

/retest

[sasagarw]

/retest

[jcantrill]

/approve /lgtm

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jcantrill, sasagarw

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

The pull request process is described here

Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/openshift/origin-aggregated-logging/blob/master/OWNERS)~~ [jcantrill] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[openshift-bot]

/retest-required

Please review the full test history for this PR and help us cut down flakes.

[openshift-bot]

/retest-required

Please review the full test history for this PR and help us cut down flakes.

[sasagarw]

/retest

[openshift-bot]

/retest-required

Please review the full test history for this PR and help us cut down flakes.

[openshift-ci[bot]]

@sasagarw: all tests passed!

Full PR test history. Your PR dashboard.

Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository. I understand the commands that are listed [here](https://go.k8s.io/bot-commands).