Latest version of io.cloudevents:cloudevents-protobuf
https://javadoc.io/doc/io.cloudevents/cloudevents-protobuf
Current version 2.1.1
https://javadoc.io/doc/io.cloudevents/cloudevents-protobuf/2.1.1
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/io.cloudevents/cloudevents-protobuf/2.1.1/package-list