build

chore: increment version to 0.19.0-dev #858

Job	Run time
build_and_test_macos (macos-13)	1m 55s
build_and_test (stable, --features "")	1m 37s
build_and_test_macos (macos-latest)	56s
build_and_test (stable, --all-features)	2m 15s
fmt	1m 25s
build_and_test_windows	2m 27s
build_and_test (stable, --no-default-features)	1m 21s
build_and_test (1.77, --features "")	1m 52s
minimal-versions	2m 55s
build_and_test (1.77, --all-features)	2m 12s
semver	3m 54s
build_and_test (1.77, --no-default-features)	1m 16s
build_and_test (beta, --features "")	1m 40s
clippy	1m 2s
build_and_test (beta, --all-features)	2m 13s
codecov	3m 49s
build_and_test (beta, --no-default-features)	1m 10s
build_and_test (nightly, --features "")	2m 28s
build_and_test (nightly, --all-features)	2m 39s
build_and_test (nightly, --no-default-features)	2m 5s
	41m 11s

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