This update for python-rebulk fixes the following issues:

Update to version 3.0.1 (fixes boo#1186892)

* Fix broken package No such file or directory: 'CHANGELOG.md'

Update to version 3.0.0

* regex: Replace REGEX_DISABLED environment variable with
  REBULK_REGEX_ENABLED
* Add python 3.8/3.9 support, drop python 2.7/3.4 support
* regex module is now disabled by default, even if it's
  available in the python interpreter. You have to set
  REBULK_REGEX_ENABLED=1 in your environment to enable it,
  as this module may cause some issues.