(#574) Exclude all issues with label

[AdmiringWorm]

Description

This updates the handling on how we are excluding labels when generating release notes. This allows issues to be assigned with a normal label, but still be excluded if a different label is listed in the exclusion list.

Related Issue

fixes #574

Motivation and Context

Previously you would need to add and remove labels between drafting a release notes.

How Has This Been Tested?

This has been tested by running through scenarios locally using my FakeTestRepository

Screenshots (if appropriate):

Checklist:

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.

[gep13]

@AdmiringWorm thank you for getting this added! This will be a big help!

[gep13]

The GitHub Actions build seems to have stalled, so going to move forward with getting this merged, rather than wait for it to complete.