Created by: jmini
This should fix the warnings we see at the beginning of the maven build:
[WARNING]
[WARNING] Some problems were encountered while building the effective model for org.openapitools:openapi-generator-online:jar:3.0.0-SNAPSHOT
[WARNING] 'build.plugins.plugin.version' for org.springframework.boot:spring-boot-maven-plugin is missing. @ line 33, column 21
[WARNING]
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING]
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING] @cbornet can you have a look?