test

Converts to Swift Concurrency #18

Job	Run time
lint / Format linting	13s
test / Test on macOS	1m 9s
test / Test on Linux - swift:5.10-jammy	48s
test / Test on Linux - swift:6.0-noble	56s
test / Test on Linux - swift:6.0-jammy	1m 4s
test / Test on Linux - swift:6.1-jammy	57s
test / Test on Linux - swift:6.1-noble	56s
test / Test on Linux - swift:5.10-noble	56s
test / Test on Android	-1s
	6m 58s

Provide feedback