CI: make JDK distribution explicit and use Eclipse Temurin
CI: make JDK distribution explicit and use Eclipse Temurin

pferraro/JGroups,belaban/JGroups,rhusar/JGroups,belaban/JGroups,belaban/JGroups,pferraro/JGroups,rhusar/JGroups,pferraro/JGroups,rhusar/JGroups