Bug fixes:
- [k8s,k8s/ingress] Fix wildcard hostname issue (#7711 by avdhoot)
- [k8s,k8s/ingress] Compile kubernetes ingress annotation regex only once (#7647 by hensur)
- [middleware,webui] webui: fix missing custom request and response header names (#7706 by kevinpollet)
- [middleware] Fix log level on error pages middleware (#7737 by Nowheresly)
Documentation:
- [docker] docs: fix broken links to docker-compose documentation (#7702 by kevinpollet)
- [ecs] Add ECS to supported providers list (#7714 by anilmaurya)
- Update copyright year for 2021 (#7734 by kevinpollet)