improve coverage #550

Job	Run time
build pgo-optimized on ${{ matrix.os }} / ${{ matrix.interpreter }}	0s
bench	45s
build sdist	22s
build on ${{ matrix.os }} (${{ matrix.target }} - ${{ matrix.interpreter \|\| 'all' }}${{ (((matrix.os == 'linux') && format(' - {0}', (((matrix.manylinux == 'auto') && 'manylinux') \|\| matrix.manylinux))) \|\| '') }})	0s
fuzz on ubuntu-latest	5m 53s
fuzz on macos-latest	6m 30s
lint	1m 9s
resolve	3s
fuzz skip	6m 1s
test on macos-latest	49s
test jiter-python	49s
test on macos-latest	1m 8s
test build on ${{ matrix.os }}	0s
test build on ${{ matrix.target }}-${{ matrix.distro }}	0s
test rust-stable on linux	52s
test rust-nightly on linux	1m 35s
test rust-1.73.0 on linux	1m 1s
inspect-pypi-assets	0s
check	4s
release-python	0s
release	0s
	27m 1s

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