Update allows.txt (#22130)

Source code repo:
https://github.com/arize-ai/phoenix

Document about deloyment with container:
https://docs.arize.com/phoenix/deployment/docker

allows.txt

@@ -28,6 +28,7 @@ docker.io/appsmith/appsmith-ee
 docker.io/aquasec/*
 docker.io/arey/*
 docker.io/argoproj/rollouts-demo
+docker.io/arizephoenix/phoenix
 docker.io/arm64v8/*
 docker.io/b3log/siyuan
 docker.io/babashka/babashka