Fix some serving samples' Dockerfile to run as non-root user#1

Closed

prushh wants to merge 3 commits intomainfrom fix-serving-samples-non-root

+549-141

Commits on Nov 12, 2023

fix some cloudevents samples' Dockerfile to run as non-root user
prushh
committed
fix some hello-world samples' Dockerfile to run as non-root user
prushh
committed
fix other serving samples' Dockerfile to run as non-root user
prushh
committed