Revert "Remove the spring-worker-example from the build (and from the buld only) until https://github.com/vert-x3/vertx-codegen/issues/131 is fixed and released."
Revert "Remove the spring-worker-example from the build (and from the buld only) until https://github.com/vert-x3/vertx-codegen/issues/131 is fixed and released."

This reverts commit 6647064e8a7afab08fa1165c3a55581ebdbb6cd2.

vert-x3/vertx-examples,vert-x3/vertx-examples,vert-x3/vertx-examples,vert-x3/vertx-examples,vert-x3/vertx-examples