Remove MongoDB 4.4 and 5.x pipeline properties.

Closes #2493

Author: mp911de

ci/pipeline.properties

@@ -7,8 +7,6 @@ docker.java.main.image=library/eclipse-temurin:${java.main.tag}
 docker.java.next.image=library/eclipse-temurin:${java.next.tag}
 
 # Supported versions of MongoDB
-docker.mongodb.4.4.version=4.4.25
-docker.mongodb.5.0.version=5.0.21
 docker.mongodb.6.0.version=6.0.10
 docker.mongodb.7.0.version=7.0.2
 docker.mongodb.8.0.version=8.0.0