chore(deps): update container image traefik to v2.11 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
traefik	minor	v2.10 -> 2.11

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Release Notes

containous/traefik (traefik)

### [`v2.11`](https://togithub.com/containous/traefik/blob/HEAD/CHANGELOG.md#v2211-2020-09-07) [All Commits](https://togithub.com/traefik/traefik/compare/v2.2.10...v2.2.11) **Bug fixes:** - **\[middleware]** fix: header middleware response writer. ([#​7252](https://togithub.com/traefik/traefik/pull/7252) by [ldez](https://togithub.com/ldez)) **Documentation:** - **\[healthcheck]** Clarified hostname documentation for load balancer healthcheck ([#​7254](https://togithub.com/traefik/traefik/pull/7254) by [AndrewSav](https://togithub.com/AndrewSav))

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