feat: async `generateStateFunction` and `checkStateFunction` #494

Job	Run time
test / Check Licenses	25s
test / Test Fastify Integration	0s
test / Dependency Review	6s
test / Lint Code	19s
test / Test (14, macos-latest)	56s
test / Test (14, ubuntu-latest)	36s
test / Test (16, macos-latest)	48s
test / Test (16, ubuntu-latest)	26s
test / Test (16, windows-latest)	1m 17s
test / Test (18, macos-latest)	33s
test / Test (18, ubuntu-latest)	30s
test / Test (18, windows-latest)	1m 5s
test / Test (20, macos-latest)	46s
test / Test (20, ubuntu-latest)	25s
test / Test (20, windows-latest)	1m 5s
test / Test (21, macos-latest)	54s
test / Test (21, ubuntu-latest)	26s
test / Test (21, windows-latest)	1m 7s
test / Automerge Dependabot PRs	0s
	11m 44s

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