PYTHON-5126 Updated changelog to reflect breaking change in bson.binary.BinaryVector #2442

Job	Run time
Make SDist	35s
Build wheels for win_amd6	5m 33s
Build wheels for manylinux_x86_64	2m 17s
Build wheels for manylinux_i686	2m 29s
Build wheels for manylinux_ppc64le	10m 40s
Build wheels for manylinux_s390x	11m 18s
Build wheels for manylinux_aarch64	12m 4s
Build wheels for macos	13m 0s
Build wheels for win32	5m 40s
Download Wheels	7s
	1h 3m 43s

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