[JAVA-27823] Upgraded docker-images to spring boot 3 (#16047)

docker-modules/docker-images/pom.xml

@@ -8,9 +8,9 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-boot-2</artifactId>
+        <artifactId>parent-boot-3</artifactId>
         <version>0.0.1-SNAPSHOT</version>
-        <relativePath>../../parent-boot-2</relativePath>
+        <relativePath>../../parent-boot-3</relativePath>
     </parent>
 
     <dependencies>

docker-modules/docker-images/private-repo/Dockerfile

@@ -1,4 +1,4 @@
-FROM openjdk:11
+FROM openjdk:17-jdk-alpine
 ARG JAR_FILE=target/*.jar
 COPY ${JAR_FILE} app.jar
 ENTRYPOINT ["java","-jar","/app.jar"]