We need to add instructions and perhaps a justfile target for profiling memory usage in pymongo, using py-spy.

Rough notes from working on HELP-72348:

• Create an ubuntu spawn host
• Use the pymongo scripts to set up the host
• Install py-spy: https://github.com/benfred/py-spy
• Create a test script that does a setup and then loops over the code to profile, to improve the sampling
• Run the script using something like: py-spy record -o profile.svg --native -r 2000 - python test.py
• Use scp to get the svg file back from the host