Fix a race in pkg/integration.TestChannelBufferTimeout
Fix a race in pkg/integration.TestChannelBufferTimeout

Update #22965

Signed-off-by: Akihiro Suda <ea940da7e429af3d0d0c18296cabd0112a36bad5@lab.ntt.co.jp>

thaJeztah/docker.github.io,cpuguy83/docker,konstruktoid/docker-upstream,shishir-a412ed/docker,menglingwei/denverdino.github.io,dccurtis/docker,laijs/moby,Shopify/docker,docker/docker.github.io,13W/docker,gjaskiewicz/moby,gjaskiewicz/moby,ibuildthecloud/docker,resin-io/docker,stevvooe/docker,joeuo/docker.github.io,jthelin/docker,Ramzec/docker,alexisbellido/docker.github.io,sanjeo/docker,mtanlee/docker,liaoqingwei/docker,hypriot/docker,aduermael/docker.github.io,twaugh/docker,BSWANG/denverdino.github.io,tonistiigi/docker,HuKeping/docker,ibuildthecloud/docker,kencochrane/docker,yummypeng/docker,zhuguihua/docker,fcrisciani/docker,asbjornenge/docker,docker-zh/docker.github.io,mahak/docker,laijs/moby,bonczj/moby-json-file-logger,sarnautov/moby,dccurtis/docker,darrenstahlmsft/moby,jvanz/docker,gigidwan/docker,johnstep/docker.github.io,dperny/docker,jlhawn/docker,rhatdan/storage,kolyshkin/moby,johnstep/moby-moby,pecameron/docker,darrenstahlmsft/docker,lixiaobing1/docker,tagomoris/docker,nawawi/docker,dperny/docker,miminar/docker,joeuo/docker.github.io,liaoqingwei/docker,rillig/docker.github.io,asbjornenge/docker,bearstech/moby,charleswhchan/docker,medallia/docker,sanjeo/docker,rillig/docker.github.io,mtanlee/docker,whuwxl/docker,dmcgowan/docker,LuisBosquez/docker.github.io,KingEmet/docker,willmtemple/docker,cloudflare/docker,catinthesky/docker,mohmost12/docker,nalind/docker,mixja/docker,dmcgowan/docker,joaofnfernandes/docker.github.io,londoncalling/docker.github.io,ibuildthecloud/docker,sanscontext/docker.github.io,mikedougherty/docker,ajaymdesai/docker,srust/docker,kencochrane/docker,Mokolea/docker,rancher/docker,eskaaren/docker,jvanz/docker,darrenstahlmsft/docker,thaJeztah/docker.github.io,kunalkushwaha/docker,pecameron/docker,anweiss/docker.github.io,tagomoris/docker,catinthesky/docker,stainboy/docker,ColinHebert/docker,docker-zh/docker.github.io,ColinHebert/docker,fcrisciani/docker,diogomonica/docker,gjaskiewicz/moby,qudongfang/docker,ColinHebert/docker,dims/docker,Syntaxide/docker,JimGalasyn/docker.github.io,coreos/docker,PatrickLang/moby,x1022as/docker,vdemeester/docker,LuisBosquez/docker.github.io,kunalkushwaha/docker,tophj-ibm/moby,docker/docker.github.io,projectatomic/docker,tkopczynski/docker,pramodhkp/moby,qudongfang/docker,alexisbellido/docker.github.io,joeuo/docker.github.io,justincormack/docker,yosifkit/docker,dsheets/moby,sarnautov/moby,bdwill/docker.github.io,toli/docker,JMesser81/docker,mikebrow/docker,rhatdan/storage,pradipd/moby,docker/docker.github.io,alfred-landrum/docker,yosifkit/docker,twaugh/docker,mikedougherty/docker,thtanaka/docker,charleswhchan/docker,nawawi/docker,johnstep/docker.github.io,shin-/docker.github.io,alexisbellido/docker.github.io,Syntaxide/docker,xuxinkun/docker,joaofnfernandes/docker.github.io,dnephin/docker,jongiddy/docker,stainboy/docker,KingEmet/docker,dongjoon-hyun/docker,PatrickLang/moby,resin-io/docker,dnephin/docker,13W/docker,tmp6154/docker,x1022as/docker,tophj-ibm/moby,amatsus/docker,pradipd/moby,JimGalasyn/docker.github.io,cloudflare/docker,thaJeztah/docker,docker-zh/docker.github.io,crosbymichael/docker,JimGalasyn/docker.github.io,danix800/docker.github.io,johnstep/moby-moby,menglingwei/denverdino.github.io,JMesser81/docker,joeuo/docker.github.io,gigidwan/docker,kolyshkin/docker,jzwlqx/denverdino.github.io,madhanrm/docker,shishir-a412ed/docker,erikh/docker,rremer/moby,unclejack/docker,joeuo/docker.github.io,allencloud/docker,xiekeyang/docker,cpuguy83/docker,jhorwit2/docker,cyphar/docker,nghiant2710/docker,lixiaobing10051267/docker,bearstech/moby,ffoysal/docker,yp-engineering/docker,mtanlee/docker,sfsmithcha/docker,docker/docker.github.io,liaoqingwei/docker,londoncalling/docker.github.io,moul/docker,shin-/docker.github.io,YuPengZTE/docker,HideoYamauchi/docker,stevvooe/docker,ajaymdesai/docker,dsau/docker,sarnautov/moby,djs55/docker,denverdino/denverdino.github.io,flavio/docker,bdwill/docker.github.io,jameszhan/docker,mike1729/docker,sanscontext/docker.github.io,jimjag/docker,sfsmithcha/docker,KingEmet/docker,jlebon/docker,mahak/docker,endophage/docker,hqhq/moby,LuisBosquez/docker.github.io,phiroict/docker,michael-holzheu/docker,Morsicus/docker,moul/docker,endophage/docker,coolljt0725/docker,gdevillele/docker.github.io,ffoysal/docker,hqhq/moby,icaoweiwei/docker,denverdino/denverdino.github.io,moypray/docker,diogomonica/docker,londoncalling/docker.github.io,justyntemme/docker,tkopczynski/docker,Shopify/docker,thaJeztah/docker.github.io,qudongfang/docker,miminar/docker,yasiramin10p/moby,cyphar/docker,kencochrane/docker,resin-io/docker,kojiromike/docker,denverdino/denverdino.github.io,jimjag/docker,charleswhchan/docker,shishir-a412ed/docker,diogomonica/docker,sterchelen/docker,JimGalasyn/docker.github.io,SvenDowideit/docker,mtrmac/docker,medallia/docker,haveatry/docker,akira-baruah/docker,stainboy/docker,HuKeping/docker,whuwxl/docker,haveatry/docker,splunk/docker,shubheksha/docker.github.io,harche/docker,trebonian/docker,yongtang/docker,Tenk42/docker,hqhq/moby,coreos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