Exit with status 3 when worker starts failed (#1077)
Exit with status 3 when worker starts failed (#1077)

* fix: exit with status 3 when worker starts failed to aviod infinite start/stop cycles

* docs: fixes spelling error

* style: lint the code

* fix: replace magic exit code

Co-authored-by: fanchunke <09d507690605a43783f8816455719137a5779a0d@laiye.com>
encode/uvicorn,encode/uvicorn