PYTHON-5593 Adds v4.15.2 notes to changelog #2987

Job	Run time
Make SDist	58s
Build wheels for manylinux_aarch64	13m 47s
Build wheels for manylinux_ppc64le	13m 50s
Build wheels for manylinux_s390x	14m 47s
Build wheels for win_arm64	6m 53s
Build wheels for manylinux_i686	2m 18s
Build wheels for win_amd6	5m 20s
Build wheels for win32	4m 50s
Build wheels for manylinux_x86_64	1m 59s
Build wheels for macos	3m 42s
Download Wheels	10s
	1h 8m 34s

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