add jakarta transformer plugin: javax -> jakarta with classifier "jakarta"

[gitmotte]

<plugin>
        <groupId>org.eclipse.transformer</groupId>
        <artifactId>org.eclipse.transformer.maven</artifactId>
        <version>0.2.0</version>
        <executions>
          <execution>
            <id>jakarta-ee</id>
            <goals>
              <goal>run</goal>
            </goals>
            <phase>package</phase>
            <configuration>
              <classifier>jakarta</classifier>
            </configuration>
          </execution>
        </executions>
</plugin>