Upgrade mio and release a new version of ipc-channels (#341) #109

Job	Run time
macOS	28s
Linux	28s
macOS (force-inprocess)	26s
Windows (x86_64-pc-windows-msvc)	53s
Linux (force-inprocess)	30s
macOS (async)	36s
Windows (i686-pc-windows-msvc)	55s
Linux (memfd)	36s
Windows (--features force-inprocess, x86_64-pc-windows-msvc)	55s
Linux (async)	37s
Windows (--features force-inprocess, i686-pc-windows-msvc)	52s
Windows (--features windows-shared-memory-equality, x86_64-pc-windows-msvc)	50s
Windows (--features windows-shared-memory-equality, i686-pc-windows-msvc)	57s
Windows (--features async, x86_64-pc-windows-msvc)	59s
Windows (--features async, i686-pc-windows-msvc)	1m 19s
Result	1s
	11m 22s

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