Fix broken isExternalRelease check

0.0.12

fix broken isExternalRelease check

Fix isExternalRelease handling

Fix isExternalReleaseHandling, we should default to false.

Handle all issues and only issues

Made some changes that ensured we handled ALL issues by paginating and then ensured we didn't accidentally grab PR's.

Update assumptions

Update assumptions in README.md

Make name slightly more generic

Make name more generic based on ability to set label.

Update readme and small fixes

See title

Allow user to specify label

Allows the user to specify what label represents issues that should be closed when a new release has been shipped.

Allow `isExternalRelease` to be true

If your repository doesn't use releases and you do releases elsewhere, but still want to use this GitHub Action, you can set isExternalRelease to "true" and specify your own message.

Fix how we get the most recent release

Fix how we get the most recent release.

Add assumptions to the README.md

Fix version and license

Releasing another pre-release to fix the version and the license.