Bump eclipse-temurin

Bumps the docker group with 1 update in the /server/docker directory: eclipse-temurin.


Updates `eclipse-temurin` from 21-jdk-alpine to 25-jdk-alpine

---
updated-dependencies:
- dependency-name: eclipse-temurin
  dependency-version: 25-jdk-alpine
  dependency-type: direct:production
  dependency-group: docker
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

server/docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM eclipse-temurin:21-jdk-alpine
+FROM eclipse-temurin:25-jdk-alpine
 COPY target/*.jar app.jar
 ENTRYPOINT ["java","-jar","/app.jar"]