Update boskos to v20251218-e3340a3, prow to v20251223-f0341d7b5 and ghproxy as needed#8890

k8s-infra-ci-robot wants to merge 1 commit into

kubernetes:mainkubernetes/k8s.io:mainfrom

k8s-infra-ci-robot:autobumpk8s-infra-ci-robot/k8s.io:autobumpCopy head branch name to clipboard