New `randomPort`, `reserveRandomPort` and `portInUse` functions #226

Job	Run time
Build Haskell (8.10.7, ubuntu-latest, 3.10.1.0)	2m 21s
Build Haskell (8.10.7, macos-latest, 3.10.1.0)	4m 24s
Build Haskell (8.10.7, windows-latest, 3.10.1.0)	3m 39s
Build Haskell (9.2.7, ubuntu-latest, 3.10.1.0)	2m 11s
Build Haskell (9.2.7, macos-latest, 3.10.1.0)	3m 5s
Build Haskell (9.2.7, windows-latest, 3.10.1.0)	3m 39s
Build Haskell (9.6.3, ubuntu-latest, 3.10.1.0)	3m 1s
Build Haskell (9.6.3, macos-latest, 3.10.1.0)	9m 28s
Build Haskell (9.6.3, windows-latest, 3.10.1.0)	3m 43s
Build Haskell (9.8.1, ubuntu-latest, 3.10.1.0)	3m 3s
Build Haskell (9.8.1, macos-latest, 3.10.1.0)	7m 52s
Build Haskell (9.8.1, windows-latest, 3.10.1.0)	3m 21s
check	4s
release	0s
publish	0s
	49m 51s

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