feat(`meta`): add `essentials` to default features #5730

Job	Run time
clippy	1m 1s
docs	1m 17s
doctest	1m 50s
check no_std	37s
feature-checks	4m 44s
fmt	14s
wasm-unknown	3m 43s
test ubuntu-latest stable --no-default-features	1m 48s
wasm-wasi	2m 48s
test ubuntu-latest stable	1m 46s
test ubuntu-latest stable --all-features	2m 41s
test ubuntu-latest nightly --no-default-features	1m 37s
test ubuntu-latest nightly	1m 40s
test ubuntu-latest nightly --all-features	2m 18s
test ubuntu-latest 1.81 --no-default-features	1m 0s
test ubuntu-latest 1.81	1m 12s
test windows-latest stable --no-default-features	4m 45s
test windows-latest stable	6m 15s
test windows-latest stable --all-features	5m 52s
test windows-latest nightly --no-default-features	4m 36s
test windows-latest nightly	4m 41s
test windows-latest nightly --all-features	5m 53s
test windows-latest 1.81 --no-default-features	4m 3s
test windows-latest 1.81	3m 54s
deny / cargo deny check	23s
ci success	3s
	1h 10m 41s

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