[docs] update Docker badge to GitHub Action (#5287)
[docs] update Docker badge to GitHub Action (#5287)


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