Add `optimisation_level` 3 using `GreedyPauliSimp` #2088

Job	Run time
Run calendar visualisation test	53s
Run local-emulator tests	1m 14s
Run backend tests with QA and prod endpoint	0s
Run backend tests with QA endpoint	10m 18s
Quantinuum - Build and test module (ubuntu-latest)	3m 13s
Quantinuum - Build and test module (macos-14)	3m 4s
Quantinuum - Build and test module (windows-latest)	4m 53s
Publish to pypi	0s
Build docs	0s
	23m 35s

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