[continuous-integration] recover verbose check (#4911)
[continuous-integration] recover verbose check (#4911)

The error logs of `check` will only be printed when VERBOSE=1.
lanyuwen/openthread,bukepo/openthread,librasungirl/openthread,chshu/openthread,lanyuwen/openthread,openthread/openthread,srickardti/openthread,chshu/openthread,abtink/openthread,abtink/openthread,openthread/openthread,lanyuwen/openthread,chshu/openthread,librasungirl/openthread,chshu/openthread,lanyuwen/openthread,openthread/openthread,jwhui/openthread,librasungirl/openthread,chshu/openthread,jwhui/openthread,librasungirl/openthread,bukepo/openthread,jwhui/openthread,srickardti/openthread,lanyuwen/openthread,abtink/openthread,bukepo/openthread,abtink/openthread,srickardti/openthread,openthread/openthread,jwhui/openthread,lanyuwen/openthread,bukepo/openthread,srickardti/openthread,chshu/openthread