build

fix(metadata): Make `AdditionalField` public and permit any JSON type #968

Job	Run time
clippy	49s
build_and_test (stable, --features "")	1m 28s
build_and_test_windows	2m 54s
build_and_test_macos (macos-13)	1m 37s
build_and_test (stable, --all-features)	2m 0s
build_and_test_macos (macos-latest)	55s
build_and_test (stable, --no-default-features)	57s
codecov	1m 46s
build_and_test (1.82, --features "")	1m 23s
fmt	27s
build_and_test (1.82, --all-features)	1m 54s
minimal-versions	47s
semver	1m 49s
build_and_test (1.82, --no-default-features)	1m 14s
build_and_test (beta, --features "")	1m 49s
build_and_test (beta, --all-features)	2m 22s
build_and_test (beta, --no-default-features)	1m 10s
build_and_test (nightly, --features "")	1m 25s
build_and_test (nightly, --all-features)	1m 43s
build_and_test (nightly, --no-default-features)	2m 16s
	30m 45s

Provide feedback