Quarkus Maven Plugin version and config update

[pway99]

https://github.com/quarkusio/quarkus/wiki/Migration-Guide-1.12

• the version of the quarkus-maven-plugin should be bumped to 2.x -- An especially useful implementation of the ability to update plugin versions update is contingent on MavenVisitor and Maven Pom model support for plugins and pluginManagement sections rewrite#585 details discussed in UpgradePluginVersion -- ability to upgrade maven plugin version rewrite#579
• generate-code and generate-code-tests goals should be added

We cleaned up a few things in the Quarkus Maven Plugin. Make sure the quarkus-maven-plugin section of the pom.xml of your project looks like:

<plugin>
  <groupId>io.quarkus</groupId>
  <artifactId>quarkus-maven-plugin</artifactId>
  <version>${quarkus-plugin.version}</version>
  <extensions>true</extensions>
  <executions>
    <execution>
      <goals>
        <goal>build</goal>
        <goal>generate-code</goal>
        <goal>generate-code-tests</goal>
      </goals>
    </execution>
  </executions>
</plugin>

[pway99]

Requires openrewrite/rewrite#570 and openrewrite/rewrite#571