Fix loading of example data in docker compose

[zstatmanweil]

Related Issue(s):

• Closes 141#

Description:
When trying to load the example data I was getting an error that the requests package was not found. This is because in setup.py, the server only requires uvicorn. I updated docker compose so make run-joplin now succeeds.

PR Checklist:

• pre-commit hooks pass locally
• Tests pass (run make test)
• Documentation has been updated to reflect changes, if applicable, and docs build successfully (run make docs)
• Changes are added to the CHANGELOG.