ISSUE-180 Updating CluserRole to include userextras/remote-client-ip

[justinas-b]

Udpating ClusterRole in yaml files and in helm chart to include userextras/remote-client-ip which is required for --extra-user-header-client-ip argument Signed-off-by: Justinas Balinskas 12399634+justinas-b@users.noreply.github.com

[jetstack-bot]

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[jetstack-bot]

Hi @justinas-b. Thanks for your PR.

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[justinas-b]

/release-note-none

[justinas-b]

/assign @joshvanl

[justinas-b]

This PR is to address https://github.com/jetstack/kube-oidc-proxy/issues/180

[JoshVanL]

/lgtm