[TEST] Dummy change to trigger test run on Ubuntu 20.04

[rasa-jmac]

Proposed changes:

• This is a dummy PR - DO NOT MERGE
• This triggers test runs against Ubuntu 20.04 so they can be set as branch protection rules.

Status (please check what you already did):

• [ ] added some tests for the functionality
• [ ] updated the documentation
• [ ] updated the changelog (please check changelog for instructions)
• [ ] reformat files using black (please check Readme for instructions)