Apply suggestions from code review

Author: NickLarsenNZ

druid/Dockerfile

@@ -63,7 +63,7 @@ mvn \
   -DskipTests `# Skip test execution` \
   -Dcheckstyle.skip `# Skip checkstyle checks. We dont care if the code is properly formatted, it just wastes time` \
   -Dmaven.javadoc.skip=true `# Dont generate javadoc` \
-  -Dmaven.gitcommitid.skip=true \
+  -Dmaven.gitcommitid.skip=true `# The gitcommitid plugin cannot work with git workspaces (ie: patchable)` \
   $(if [[ ${PRODUCT} != 30.* ]]; then echo --projects '!quidem-ut'; fi) `# This is just a maven module for tests. https://github.com/apache/druid/pull/16867 added https://raw.githubusercontent.com/kgyrtkirk/datasets/repo/ as a Maven repository, which fails to pull for us (Failed to execute goal on project druid-quidem-ut: Could not resolve dependencies for project org.apache.druid:druid-quidem-ut:jar:33.0.0: com.github.kgyrtkirk.datasets:kttm-nested:jar:0.1 was not found in https://build-repo.stackable.tech/repository/maven-public/). By disabling the maven module we dont pull in this weird dependency...`
 
 mv distribution/target/apache-druid-${PRODUCT}-bin/apache-druid-${PRODUCT} /stackable/