PYTHON-5441 - Unskip gridfs download chunk tests #2617

Job	Run time
Make SDist	34s
Build wheels for manylinux_aarch64	11m 37s
Build wheels for win_amd6	4m 22s
Build wheels for manylinux_x86_64	2m 28s
Build wheels for manylinux_ppc64le	11m 17s
Build wheels for manylinux_s390x	11m 47s
Build wheels for manylinux_i686	2m 26s
Build wheels for win32	4m 30s
Build wheels for macos	3m 28s
Download Wheels	8s
	52m 37s

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