[JAVA-27825] Upgraded docker-java-jar to spring boot 3 (#16048)

docker-modules/docker-java-jar/Dockerfile

@@ -1,4 +1,4 @@
-FROM openjdk:11
+FROM openjdk:17-jdk-alpine
 MAINTAINER baeldung.com
 COPY target/docker-java-jar-0.0.1-SNAPSHOT.jar app.jar
 ENTRYPOINT ["java","-jar","/app.jar"]

docker-modules/docker-java-jar/pom.xml

@@ -7,9 +7,9 @@
 
     <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>
 
     <build>
@@ -29,9 +29,4 @@
         </plugins>
     </build>
 
-    <properties>
-        <maven.compiler.source>11</maven.compiler.source>
-        <maven.compiler.target>11</maven.compiler.target>
-    </properties>
-
 </project>