feat(hugr-passes)!: Rewrite constant_fold_pass using dataflow framework #2834

Job	Run time
Check for changes	8s
tests (Rust stable, all features)	3m 1s
Build benchmarks 🏋️	2m 33s
check	1m 50s
tests (Rust nightly, coverage)	4m 38s
tests (Rust 1.75)	3m 37s
tests (Rust stable, no features)	2m 26s
tests (Rust beta)	3m 22s
tests hugr-llvm	0s
Check standard extensions	8s
Required checks 🦀	1s
	21m 44s

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