Upload nightly builds to an internal feed and have consolidated pipeline trigger on CI build completion

[aishwaryabh]

We want to fix the consolidated pipeline to automatically trigger when a build is done on either the core-tools.official pipeline or the core-tools-host pipeline, rather than having to manually input which artifacts we want to run the consolidated pipeline on. This allows less room for error as well.

However we want to distinguish between nightly builds and regular builds that were triggered by CI. Therefore, we can separate the nightly build artifacts from the CI triggered artifacts by uploading the nightly build artifacts to an internal feed.