PYTHON-4815 Migrate test_discovery_and_monitoring.py to async #965

Job	Run time
Make SDist	32s
Build wheels for manylinux_x86_64	2m 29s
Build wheels for manylinux_aarch64	10m 14s
Build wheels for manylinux_ppc64le	9m 51s
Build wheels for manylinux_s390x	10m 9s
Build wheels for manylinux_i686	2m 17s
Build wheels for win_amd6	5m 16s
Build wheels for win32	5m 15s
Build wheels for macos	2m 41s
Download Wheels	1s
	48m 45s

Provide feedback