PYTHON-5309 Ensure AsyncMongoClient doesn't use PyOpenSSL #2174

Job	Run time
Make SDist	32s
Build wheels for manylinux_x86_64	2m 33s
Build wheels for manylinux_aarch64	4m 38s
Build wheels for manylinux_ppc64le	4m 37s
Build wheels for manylinux_s390x	4m 36s
Build wheels for manylinux_i686	2m 31s
Build wheels for win_amd6	4m 29s
Build wheels for win32	4m 28s
Build wheels for macos	3m 19s
Download Wheels	1s
	31m 44s

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