Fix TypeError - check length of list

[krisgesling]

Description

Fixes #123 - if using a custom news url the RSS checker was incorrectly comparing an integer to the list itself instead of the length of that list.

Type of PR

• [x] Bugfix
• [ ] Feature implementation
• [ ] Refactor of code (without functional changes)
• [ ] Documentation improvements
• [ ] Test improvements

Testing

Add a custom url to your Skill settings and see the Skill fail to load it.

CLA

• [x] Yes