feat: Add array `repeat` and `scan` ops #2521

Job	Run time
Check for changes	6s
tests (Rust stable, no features)	1m 8s
Build benchmarks 🏋️	1m 55s
check	1m 37s
tests (Rust nightly, coverage)	2m 13s
tests (Rust 1.75)	1m 58s
tests (Rust stable, all features)	1m 51s
tests (Rust beta)	3m 2s
rs-semver-checks / Rust semver-checks 🦀	3m 31s
Check standard extensions	9s
Required checks 🦀	1s
	17m 31s

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