Bump eclipse-temurin in /examples/fabric-contract-example-as-service

Bumps eclipse-temurin from 21-jre to 25-jre.

---
updated-dependencies:
- dependency-name: eclipse-temurin
  dependency-version: 25-jre
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

examples/fabric-contract-example-as-service/Dockerfile

@@ -15,7 +15,7 @@ RUN gradle build shadowJar
 
 
 # the second stage of our build just needs the compiled files
-FROM eclipse-temurin:21-jre
+FROM eclipse-temurin:25-jre
 # copy only the artifacts we need from the first stage and discard the rest
 COPY --from=gradle_build /home/gradle/build/libs/chaincode.jar /chaincode.jar