Run mock D-Bus services on dedicated threads #1083

Job	Run time
check (--enable-debug)	40s
check (--enable-debug)	40s
sanitize-prepare	6s
sanitize-prepare	6s
check (--enable-debug --enable-aac --enable-msbc --enable-lc3-swb)	36s
check (--enable-debug --enable-aac --enable-msbc --enable-lc3-swb)	36s
check (--enable-debug --enable-mp3lame --enable-mpg123)	42s
check (--enable-debug --enable-mp3lame --enable-mpg123)	42s
check (--enable-faststream --enable-midi --enable-mp3lame)	37s
check (--enable-faststream --enable-midi --enable-mp3lame)	37s
check (--enable-aplay --enable-ofono --enable-upower)	35s
check (--enable-aplay --enable-ofono --enable-upower)	35s
check (--enable-cli --enable-rfcomm --enable-manpages)	37s
check (--enable-cli --enable-rfcomm --enable-manpages)	38s
check (--enable-aptx --enable-aptx-hd --with-libopenaptx)	43s
check (--enable-aptx --enable-aptx-hd --with-libopenaptx)	43s
sanitize (address alignment bool bounds nonnull-attribute shift undefined)	57s
sanitize (address alignment bool bounds nonnull-attribute shift undefined)	57s
sanitize (thread)	1m 49s
sanitize (thread)	1m 49s
	14m 45s

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