ci: log stderr in acceptance-deploy
ci: log stderr in acceptance-deploy

This was previously only sending stdout to the log file and redirected stderr
to (pre-redirect) stdout.

veteranlu/cockroach,maxlang/cockroach,vivekmenezes/cockroach,arjun4084346/cockroach,glycerine/cockroach,sunya123/cockroach,paperstreet/cockroach,petermattis/cockroach,vaibhavarora/cockroach,petermattis/cockroach,maxlang/cockroach,vaibhavarora/cockroach,cockroachdb/cockroach,vaibhavarora/cockroach,vaibhavarora/cockroach,petermattis/cockroach,petermattis/cockroach,sunya123/cockroach,glycerine/cockroach,cockroachdb/cockroach,vaibhavarora/cockroach,veteranlu/cockroach,paperstreet/cockroach,arjun4084346/cockroach,cockroachdb/cockroach,veteranlu/cockroach,paperstreet/cockroach,maxlang/cockroach,veteranlu/cockroach,glycerine/cockroach,vivekmenezes/cockroach,arjun4084346/cockroach,veteranlu/cockroach,vivekmenezes/cockroach,maxlang/cockroach,paperstreet/cockroach,maxlang/cockroach,arjun4084346/cockroach,arjun4084346/cockroach,cockroachdb/cockroach,veteranlu/cockroach,paperstreet/cockroach,vaibhavarora/cockroach,sunya123/cockroach,paperstreet/cockroach,cockroachdb/cockroach,arjun4084346/cockroach,sunya123/cockroach,vivekmenezes/cockroach,vivekmenezes/cockroach,vaibhavarora/cockroach,glycerine/cockroach,vivekmenezes/cockroach,sunya123/cockroach,vivekmenezes/cockroach,petermattis/cockroach,cockroachdb/cockroach,sunya123/cockroach,vivekmenezes/cockroach,maxlang/cockroach,veteranlu/cockroach,veteranlu/cockroach,cockroachdb/cockroach,glycerine/cockroach,paperstreet/cockroach,glycerine/cockroach,maxlang/cockroach,maxlang/cockroach,petermattis/cockroach,arjun4084346/cockroach,arjun4084346/cockroach,sunya123/cockroach,paperstreet/cockroach,petermattis/cockroach,vaibhavarora/cockroach,sunya123/cockroach,glycerine/cockroach,cockroachdb/cockroach,petermattis/cockroach,glycerine/cockroach