GH-2949: Bump base Docker image to `eclipse-temurin:21-alpine`#2957

Merged

afs merged 2 commits intoapache:mainfrom AtomGraph:gh2949-fuseki-docker-java

Jan 27, 2025

+2-2

Commits on Jan 15, 2025

Bump base Docker image to eclipse-temurin:21-alpine to make sure it's multi-platform (eclipse-temurin:17-alpine was not)
namedgraph
committed
Updated ALPINE_VERSION to the current latest version
namedgraph
committed