feat: add Linea Sepolia #353

Job	Run time
feature-checks	18s
docs	28s
fmt	10s
clippy	29s
miri --no-default-features	47s
miri	50s
test stable --no-default-features	8s
wasm	14s
miri --all-features	1m 4s
test stable	10s
test stable --all-features	24s
test beta --no-default-features	27s
test beta	24s
test beta --all-features	33s
test nightly --no-default-features	21s
test nightly	22s
test nightly --all-features	32s
test 1.79 --no-default-features	12s
test 1.79	13s
	8m 6s

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