chore(deps): update dependency traefik to v2.8.1

This MR contains the following updates:

Package	Type	Update	Change
traefik	Kustomization	patch	v2.8.0 -> v2.8.1

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Release Notes

containous/traefik

v2.8.1

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Bug fixes:

• [kv] Upgrade valkeyrie to v0.4.1 (#​9161 by moutoum)
• [middleware,metrics] Improve performances when Prometheus metrics are enabled (#​9168 by juliens)
• [middleware] Support forwarded websocket protocol in RedirectScheme (#​9159 by moutoum)

Documentation:

• Update the language for advocating page (#​9169 by tfny)
• Add callout for anyone using Traefik to manage commercial applications (#​9152 by tomatokoolaid)
• Update deprecation notices (#​9149 by ddtmachado)

v2.8.1

Compare Source

All Commits

Bug fixes:

• [kv] Upgrade valkeyrie to v0.4.1 (#​9161 by moutoum)
• [middleware,metrics] Improve performances when Prometheus metrics are enabled (#​9168 by juliens)
• [middleware] Support forwarded websocket protocol in RedirectScheme (#​9159 by moutoum)

Documentation:

• Update the language for advocating page (#​9169 by tfny)
• Add callout for anyone using Traefik to manage commercial applications (#​9152 by tomatokoolaid)
• Update deprecation notices (#​9149 by ddtmachado)

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