PYTHON-5309 Ensure AsyncMongoClient doesn't use PyOpenSSL #2237

Job	Run time
Make SDist	29s
Build wheels for manylinux_x86_64	2m 18s
Build wheels for manylinux_aarch64	11m 29s
Build wheels for manylinux_ppc64le	10m 55s
Build wheels for manylinux_s390x	11m 23s
Build wheels for manylinux_i686	2m 17s
Build wheels for win_amd6	4m 58s
Build wheels for win32	7m 0s
Build wheels for macos	3m 15s
Download Wheels	6s
	54m 10s

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