PYTHON-5309 Ensure AsyncMongoClient doesn't use PyOpenSSL #2240

Job	Run time
Make SDist	48s
Build wheels for manylinux_x86_64	2m 27s
Build wheels for manylinux_aarch64	11m 32s
Build wheels for manylinux_ppc64le	10m 53s
Build wheels for manylinux_s390x	11m 15s
Build wheels for manylinux_i686	2m 46s
Build wheels for win_amd6	4m 35s
Build wheels for win32	5m 24s
Build wheels for macos	3m 16s
Download Wheels	6s
	53m 2s

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