Bug fixes:

• [docker,docker/swarm] Fix Docker provider mem leak on operation retries (#9288 by rtribotte)
• [middleware] Fix retry middleware on panic (#9284 by ldez)
• [plugins] Allow Traefik starting even if plugin service is unavailable (#9287 by ldez)
• chore: update paerser to v0.1.9 (#9270 by tomMoulard)

Documentation:

• [acme] Fix infoblox acme provider documentation (#9277 by ldez)
• [k8s/crd] Fix serversTransport CRD documentation (#9283 by cuishuang)
• [k8s/crd] Fix k8s for example for rootCAs serversTransport (#9274 by ben-krieger)
• [k8s] Add missing networking apiGroup in Kubernetes RBACs examples and references (#9295 by fibsifan)
• Update deprecation notes about Pilot (#9300 by nmengin)