feat: Add array `repeat` and `scan` ops #2455

Job	Run time
Check for changes	3s
check	1m 29s
tests (Rust nightly, coverage)	2m 10s
Build benchmarks 🏋️	5m 42s
tests (Rust 1.75)	1m 59s
tests (Rust beta)	2m 10s
tests (Rust stable, no features)	1m 20s
tests (Rust stable, all features)	1m 59s
rs-semver-checks / Rust semver-checks 🦀	3m 41s
Check standard extensions	9s
Required checks 🦀	1s
	20m 43s

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