Documentation deployment regression

[fmbenhassine]

After the last update of the release process 06e16ba, the documentation distribution zip (javadocs and reference docs) is not uploaded as expected anymore.

This is certainly related to 1d7477a, which was introduced as the docs distribution was failing the entire deployment process (jars, sources, etc).

[XhstormR]

The latest version documentation is currently not accessible,
https://spring.io/projects/spring-statemachine#learn
https://docs.spring.io/spring-statemachine/docs/4.0.1/reference/index.html

[benyamynbrkyc]

This is still not available...