build

fix(zarrs_filesystem): fix `clippy::single_char_pattern` lint #874

Job	Run time
build_and_test_windows	5m 8s
build_and_test_macos (macos-13)	4m 52s
clippy	1m 25s
build_and_test_macos (macos-latest)	2m 1s
build_and_test (stable, --features "")	2m 35s
fmt	35s
build_and_test (stable, --all-features)	4m 5s
codecov	3m 48s
build_and_test (stable, --no-default-features)	2m 5s
semver	1m 44s
build_and_test (1.77, --features "")	2m 35s
minimal-versions	2m 52s
build_and_test (1.77, --all-features)	3m 2s
build_and_test (1.77, --no-default-features)	2m 21s
build_and_test (beta, --features "")	2m 47s
build_and_test (beta, --all-features)	3m 18s
build_and_test (beta, --no-default-features)	2m 35s
build_and_test (nightly, --features "")	2m 31s
build_and_test (nightly, --all-features)	2m 35s
build_and_test (nightly, --no-default-features)	2m 10s
	55m 4s

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