Ability to define multiple paths

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**Is your feature request related to a problem? Please describe.**
I am missing option to define paths whićh may be considered to scan commits. E.G. i have project with structure
- core
- features
- shared
- demo
i want scan paths /core, /features, /shared and exclude /demo.

Also with monorepo approach:
* apps
* app1
* app2

* libs
* lib1
* lib2
* shared

app1 uses code from lib1, shared, app2 uses code from lib2, shared. Theese libs are not standalone libs, it is just separation of code from app. So i do not need track changes for every separate lib, but i want include it with app. So in manifest i have only app1 and app2

**Describe the solution you'd like**
path should accept multiple paths separated by comma

**Describe alternatives you've considered**
I tried many trick like filtering repository using monorepo dependency tree and also another versoning plugins fox NX monorpo. But release-please fits best with PR approach, except this single feature missing

Another solution: let current attribute path as is and add another one: additionalPaths: string[] which accepts another paths from root of repository

**Additional context**
Add any other context or screenshots about the feature request here.