PYTHON-5773 Coverage increase for `uri_parser_shared.py` #3968

Job	Run time
Make SDist	35s
Build wheels for manylinux_aarch64	15m 9s
Build wheels for win_amd6	4m 31s
Build wheels for macos	4m 14s
Build wheels for manylinux_x86_64	2m 20s
Build wheels for manylinux_ppc64le	13m 2s
Build wheels for manylinux_s390x	15m 42s
Build wheels for win32	4m 46s
Build wheels for win_arm64	7m 24s
Build wheels for manylinux_i686	2m 27s
Download Wheels	8s
	1h 10m 18s

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