## Description

This change removes the dependency tracking library from core, as its
usage was (currently) redundant with the eventing patterns that are more
pervasively used in tree2. This code may be added back in the future if
there is a need for more complicated invalidation scenarios that events
don't satisfy.

## Breaking Changes

Dependency tracking is removed from the tree's public API.

## Description

Document all `@beta` APIs API-Extractor reported as undocumented.

This fixed all non-parameter property undocumented warnings for beta
APIs. Parameter properties are currently incorrectly reporting as
undocumented, as noted in
microsoft/rushstack#3462 (comment)

All PRs are being labeled "external-contribution". This is probably
because of srvaroa/labeler#123, which has been
resolved in the latest v1 release. I updated the version of the action
to the latest v1 version.