[changelog] release 5.8.2
[changelog] release 5.8.2

[skip ci]

takus/dd-agent,manolama/dd-agent,indeedops/dd-agent,manolama/dd-agent,Wattpad/dd-agent,manolama/dd-agent,cberry777/dd-agent,Wattpad/dd-agent,jyogi/purvar-agent,jyogi/purvar-agent,manolama/dd-agent,cberry777/dd-agent,indeedops/dd-agent,Wattpad/dd-agent,cberry777/dd-agent,jyogi/purvar-agent,indeedops/dd-agent,Wattpad/dd-agent,Wattpad/dd-agent,takus/dd-agent,cberry777/dd-agent,manolama/dd-agent,takus/dd-agent,indeedops/dd-agent,cberry777/dd-agent,jyogi/purvar-agent,takus/dd-agent,indeedops/dd-agent,jyogi/purvar-agent,takus/dd-agent