[codecov] enable coverage reporting on PRs (#3965)
[codecov] enable coverage reporting on PRs (#3965)


lanyuwen/openthread,srickardti/openthread,openthread/openthread,srickardti/openthread,lanyuwen/openthread,openthread/openthread,lanyuwen/openthread,abtink/openthread,turon/openthread,turon/openthread,openthread/openthread,jwhui/openthread,srickardti/openthread,abtink/openthread,jwhui/openthread,librasungirl/openthread,openthread/openthread,chshu/openthread,bukepo/openthread,librasungirl/openthread,jwhui/openthread,chshu/openthread,lanyuwen/openthread,bukepo/openthread,librasungirl/openthread,chshu/openthread,librasungirl/openthread,abtink/openthread,chshu/openthread,bukepo/openthread,lanyuwen/openthread,srickardti/openthread,chshu/openthread,bukepo/openthread,jwhui/openthread,lanyuwen/openthread,chshu/openthread,turon/openthread,abtink/openthread,turon/openthread