PYTHON-5441 - Unskip gridfs download chunk tests #2618

Job	Run time
Make SDist	37s
Build wheels for manylinux_aarch64	11m 25s
Build wheels for manylinux_s390x	11m 24s
Build wheels for manylinux_i686	2m 35s
Build wheels for win_amd6	3m 55s
Build wheels for manylinux_x86_64	2m 22s
Build wheels for manylinux_ppc64le	11m 10s
Build wheels for macos	4m 23s
Build wheels for win32	4m 41s
Download Wheels	8s
	52m 40s

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