fix: serde for transactions #5029

Job	Run time
doctest	2m 26s
docs	1m 7s
clippy	1m 2s
check no_std	16s
feature-checks	6m 30s
fmt	13s
wasm-unknown	49s
test ubuntu-latest stable --no-default-features	2m 5s
wasm-wasi	1m 37s
test ubuntu-latest stable	1m 54s
test ubuntu-latest stable --all-features	2m 31s
test ubuntu-latest nightly --no-default-features	1m 18s
test ubuntu-latest nightly	1m 10s
test ubuntu-latest nightly --all-features	2m 7s
test ubuntu-latest 1.79 --no-default-features	1m 3s
test ubuntu-latest 1.79	1m 5s
test windows-latest stable --no-default-features	5m 52s
test windows-latest stable	5m 54s
test windows-latest stable --all-features	6m 0s
test windows-latest nightly --no-default-features	4m 18s
test windows-latest nightly	4m 49s
test windows-latest nightly --all-features	6m 1s
test windows-latest 1.79 --no-default-features	2m 49s
test windows-latest 1.79	2m 43s
ci success	2s
	1h 5m 41s

Provide feedback