feat(`provider`): instantiate recommended fillers by default #5724

Job	Run time
clippy	41s
check no_std	39s
docs	58s
doctest	1m 27s
feature-checks	3m 52s
fmt	12s
wasm-unknown	1m 8s
test ubuntu-latest stable --no-default-features	2m 1s
wasm-wasi	1m 38s
test ubuntu-latest stable	1m 36s
test ubuntu-latest stable --all-features	2m 34s
test ubuntu-latest nightly --no-default-features	1m 18s
test ubuntu-latest nightly	1m 24s
test ubuntu-latest nightly --all-features	2m 11s
test ubuntu-latest 1.81 --no-default-features	47s
test ubuntu-latest 1.81	33s
test windows-latest stable --no-default-features	5m 11s
test windows-latest stable	4m 43s
test windows-latest stable --all-features	5m 55s
test windows-latest nightly --no-default-features	4m 26s
test windows-latest nightly	4m 42s
test windows-latest nightly --all-features	4m 30s
test windows-latest 1.81 --no-default-features	2m 10s
test windows-latest 1.81	2m 44s
deny / cargo deny check	20s
ci success	4s
	57m 44s

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