⚡ ln.connect() is rather slow and affects lamin load for a notebook or script

[falexwolf]

Particularly for calls across continents.

It's roughly ~4sec, and we've seen this for a while.

It also affects lamin load for a notebook.

Here are a few profiling PRs:

• ⚡ Improve performance of ln.connect(), lamin connect, and lamin load for a notebook lamin-cli#84
• ⚡️ Speed up ln.connect() lamindb-setup#871

[falexwolf]

The profiling PRs resolved the performance issue to a good degree. We can look into this again further down the road.