feat: Blob Tx Sidecar Iterator #4135

Job	Run time
wasm-wasi	47s
doctest	48s
clippy	49s
check no_std	21s
fmt	14s
feature-checks	48s
test ubuntu-latest stable --no-default-features	47s
wasm-unknown	38s
cfg-check	45s
test ubuntu-latest stable	47s
docs	47s
test ubuntu-latest stable --all-features	45s
test ubuntu-latest nightly --no-default-features	48s
test ubuntu-latest nightly	47s
test ubuntu-latest nightly --all-features	47s
test ubuntu-latest 1.79 --no-default-features	46s
test ubuntu-latest 1.79	48s
test windows-latest stable --no-default-features	34s
test windows-latest stable	30s
test windows-latest stable --all-features	29s
test windows-latest nightly --no-default-features	31s
test windows-latest nightly	36s
test windows-latest nightly --all-features	32s
test windows-latest 1.79 --no-default-features	30s
test windows-latest 1.79	29s
	16m 23s

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