Updating to use original CocoaPods artifact

[KevinSchildhorn]

No description provided.

[Bradleycorn]

With this update to store the artifact in the release, you'll also need to update the Github Actions workflow, particularly if you are using a private repo...
The step to setup the netrc file will need to be updated to use api.github.com (since that is the domain that is used to download the framework from the release) instead of maven.pkg.github.com (which was what it was using before when the framework was upload to the github packages maven repo). Without this update, the podspec validation will fail with a 403 (because it can't download the file) and the podspec repo won't be updated.