Bump spring boot, docker plugin

pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.2.7.RELEASE</version>
 	</parent>
 
 	<groupId>com.charego</groupId>
@@ -27,8 +27,8 @@
 	</modules>
 
 	<profiles>
-		<!-- Prevent client module from building on Heroku -->
-		<!-- Heroku's JDKs are headless -->
+		<!-- Disable client module by default -->
+		<!-- The build fails under headless JDK -->
 		<profile>
 			<id>javafx</id>
 			<modules>

server/pom.xml

@@ -62,12 +62,12 @@
 			<plugin>
 				<groupId>com.google.cloud.tools</groupId>
 				<artifactId>jib-maven-plugin</artifactId>
-				<version>1.8.0</version>
+				<version>2.2.0</version>
 				<configuration>
 					<!-- Enable this setting to allow pushes to local Docker registry -->
 					<!--<allowInsecureRegistries>true</allowInsecureRegistries>-->
 					<from>
-						<image>gcr.io/distroless/java:11</image>
+						<image>adoptopenjdk:11-jre-openj9</image>
 					</from>
 					<container>
 						<ports>