Turn `Dispatcher` into a background service #176

Job	Run time
Test documentation website generation	0s
Build distribution packages	12s
Cross-arch tests with nox (arm64, ubuntu-20.04, 3.11, pytest_min)	6m 50s
Test with nox (ubuntu-20.04, 3.11, ci_checks_max)	1m 17s
Cross-arch tests with nox (arm64, ubuntu-20.04, 3.11, pytest_max)	6m 55s
Test with nox (ubuntu-20.04, 3.11, pytest_min)	55s
Test package installation in different architectures	3m 20s
Test with nox	1s
Cross-arch tests with nox	1s
Publish documentation website to GitHub pages	0s
Create GitHub release	0s
Publish packages to PyPI	0s
	19m 31s

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