Change base image to JRE and update jar name

Author: pavan203

Dockerfile

@@ -6,7 +6,7 @@ COPY src ./src
 RUN mvn clean package -DskipTests
 
 # Stage 2: Run the application
-FROM eclipse-temurin:21-jdk
+FROM eclipse-temurin:21-jre
 WORKDIR /app
-COPY --from=build /app/target/my-app-1.0-SNAPSHOT.jar app.jar
-CMD ["java", "-jar", "app.jar"]
+COPY --from=build /app/target/simple-java-maven-app-1.0-SNAPSHOT.jar app.jar
+ENTRYPOINT ["java", "-jar", "app.jar"]