feat: get_block_transaction_count_by_hash in Provider trait (#1686) #5182

Job	Run time
docs	1m 0s
check no_std	15s
doctest	1m 6s
clippy	48s
feature-checks	3m 44s
fmt	11s
wasm-unknown	47s
test ubuntu-latest stable --no-default-features	1m 28s
wasm-wasi	1m 15s
test ubuntu-latest stable	1m 52s
test ubuntu-latest stable --all-features	2m 34s
test ubuntu-latest nightly --no-default-features	1m 32s
test ubuntu-latest nightly	1m 24s
test ubuntu-latest nightly --all-features	2m 24s
test ubuntu-latest 1.79 --no-default-features	52s
test ubuntu-latest 1.79	32s
test windows-latest stable --no-default-features	4m 37s
test windows-latest stable	4m 18s
test windows-latest stable --all-features	5m 46s
test windows-latest nightly --no-default-features	3m 20s
test windows-latest nightly	2m 59s
test windows-latest nightly --all-features	6m 9s
test windows-latest 1.79 --no-default-features	1m 51s
test windows-latest 1.79	1m 32s
ci success	2s
	52m 18s

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