Update uvicorn.mdx

[louisguitton]

docs only change fixing a typo on this page https://docs.newrelic.com/docs/apm/agents/python-agent/web-frameworks-servers/uvicorn/

If you run the given command, you get the following error

/usr/local/bin/python: can't open file 'uvicorn': [Errno 2] No such file or directory

and indeed running the help command gives you (I have removed the irrelevant parts)

# newrelic-admin run-python --help
usage: /usr/local/bin/python [option] ... [-c cmd | -m mod | file | -] [arg] ...
-c cmd : program passed in as string (terminates option list)
file   : program read from script file

which means that newrelic-admin run-python expects a file or a -c cmd. uvicorn is not a file but a command, so I propose the follwoing fix.

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[dbarnesbrownNR]

SME approved, thank you!

[umaannamalai]

Approved by the Python agent engineering team. Thank you for catching this @louisguitton!

[dbarnesbrownNR]

Looks good and we have SME approval. All set, thanks!