Webex Channel Fix: personId -> roomId

[isaac-philip]

This is a much needed fix because presently we are unable to have the rasa-bot respond back to the specific room that sends the message thus enabling no reply to the user

The fix is also presented at #5460 but since it will be released at 1.11.0 thenn we need to hotfix it soon.

References #5460

Proposed changes:

• ...

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)

[CLAassistant]

All committers have signed the CLA.

[isaac-philip]

@wochinge kindly help for this MR.

[sara-tagger]

Thanks for submitting a pull request 🚀 @wochinge will take a look at it as soon as possible ✨

[wochinge]

Thanks for porting this @isaac-philip 🙏
Could you please add a short changelog entry?

[isaac-philip]

Added the changelog, thanks.

[wochinge]

Thanks a lot! 🎉

[isaac-philip]

Thanks for the help @wochinge ! 🥇

[isaac-philip]

@wochinge do you have any document you can share on the release strategy employed? I would like to learn from it.

[wochinge]

@isaac-philip Thanks for your question! We talked about your question internally, and we fully agree with you that the release process should be documented publicly and transparently. We will keep track of our progress towards this in #6260 .

Maybe this short info can help you out until #6260 is done:

1. We release Rasa Open Source minors in fixed 4 week cycles (currently on hold as we are working towards a Rasa Open Source 2.0 major)
2. Micro (also referred to as patch) releases are cut as required. They can only include bugfixes or documentation improvements, but no new features (following the semantic versioning guidelines)