Maintenance: use void return for commSetTimeout functions #207

Job	Run time
functionality-tests	17m 56s
CodeQL-tests	27m 5s
source-maintenance-tests	2m 53s
build-tests(ubuntu-22.04,gcc,default)	7m 47s
build-tests(ubuntu-22.04,gcc,minimal)	5m 15s
build-tests(ubuntu-22.04,gcc,maximus)	9m 58s
build-tests(ubuntu-22.04,clang,default)	8m 31s
build-tests(ubuntu-22.04,clang,minimal)	5m 52s
build-tests(ubuntu-22.04,clang,maximus)	10m 7s
	1h 35m 24s

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