feat!: Replace Subcircuit // take 2 #4027

Job	Run time
Check for changes	6s
Check Rust code 🦀	2m 23s
Check Python code 🐍	2m 35s
tests (Rust nightly, coverage)	3m 42s
Continuous benchmarking 🏋️	4m 54s
tests (Rust stable, all features)	2m 41s
tests (Python, coverage)	2m 57s
tests (Rust 1.85)	3m 41s
tests (Rust stable, no features)	1m 22s
tests (Rust beta)	3m 10s
Check extension versions	-1s
Check standard extensions	52s
Required checks 🦀+🐍	5s
	28m 27s

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