Merge pull request #7017 from oscr/upgrade-plantuml

📖 Update PlantUML version (v1.2019.6 -> v1.2022.6)

Author: k8s-ci-robot

docs/Dockerfile

@@ -25,14 +25,14 @@
 # docker run \
 # 	--rm \
 # 	--volume ${PWD}:/figures \
-# 	--user $(shell id --user):$(shell id --group) \
+# 	--user $(id --user):$(id --group) \
 # 	${IMAGE_TAG} \
 # 	-v /figures/*.plantuml
 
 FROM maven:3-jdk-8
 
 RUN apt-get update && apt-get install -y --no-install-recommends graphviz=2.42.2-5 fonts-symbola=2.60-1.1 fonts-wqy-zenhei=0.9.45-8 && rm -rf /var/lib/apt/lists/*
-RUN wget -O /plantuml.jar http://sourceforge.net/projects/plantuml/files/plantuml.1.2019.6.jar/download
+RUN wget -O /plantuml.jar https://github.com/plantuml/plantuml/releases/download/v1.2022.6/plantuml-1.2022.6.jar
 
 # By default, java writes a 'hsperfdata_<username>' directory in the work dir.
 # This directory is not needed; to ensure it is not written, we set `-XX:-UsePerfData`