feat(tket2-hseries): Add `tket2.wasm` extension #2475

Job	Run time
Check for changes	6s
Build benchmarks 🏋️	4m 22s
tests (Rust nightly, coverage)	2m 0s
Check Python code 🐍	1m 57s
Check Rust code 🦀	11s
tests (Python, coverage)	2m 16s
tests (Rust 1.75)	2m 7s
tests (Rust stable, no features)	1m 22s
tests (Rust stable, all features)	1m 39s
tests (Rust beta)	2m 8s
Check standard extensions	34s
Required checks 🦀+🐍	1s
	18m 43s

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