Set threshold for a number of unique nodes in ProfileChunk (#53536)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/53536

# Changelog: [Internal]

For every chunk, we already have a threshold for the number of samples captured in this chunk.

There could be really tall call stacks, where we could record hundreds of unique nodes, which makes the chunk already big enough for a CDP traffic on android.

We are adding a threshold for a number of unique nodes in a single chunk. If the chunk has a greater number of nodes recorded, it will be dispatched over CDP.

Reviewed By: huntie

Differential Revision: D81339677

fbshipit-source-id: 388d14c64c4c3f60918a8526025f79d19d397cb4