Key share refreshing ceremony refactor #542

Job	Run time
check	31s
yarn-test (stable, wasm32-unknown-unknown)	4m 10s
python-test (stable, wasm32-unknown-unknown, 3.11)	3m 52s
wasm-test (1.67, wasm32-unknown-unknown)	5m 58s
python-test (stable, wasm32-unknown-unknown, 3.12)	3m 55s
wasm-test (stable, wasm32-unknown-unknown)	5m 49s
test (x86_64-unknown-linux-gnu, 1.67)	2m 35s
test (x86_64-unknown-linux-gnu, stable)	2m 32s
compile-benchmarks	5m 23s
codecov	9m 7s
benchmark	0s
	43m 52s

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