feat: Add array `repeat` and `scan` ops #2523

Job	Run time
Check for changes in Python files	7s
check python 3.10	17s
check python 3.13	27s
Build HUGR binary	30s
Check serialization schema	13s
test python 3.10	31s
test python 3.13	45s
Required checks 🐍	1s
	2m 51s

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