Bump docker-maven-plugin from 0.39.1 to 0.40.0 (#1297)

Author: dependabot[bot]

pom.xml

@@ -445,7 +445,7 @@
           <plugin>
             <groupId>io.fabric8</groupId>
             <artifactId>docker-maven-plugin</artifactId>
-            <version>0.39.1</version>
+            <version>0.40.0</version>
             <configuration>
               <verbose>true</verbose>
               <images>