Cherry-pick #22134 to 7.x: [Packetbeat] Refactor packetbeat for use with Elastic Agent#22546

Merged

andrewstucki merged 3 commits intoelastic:7.xfrom andrewstucki:backport_22134_7.x

Nov 11, 2020

+1,028-313

Commits on Nov 11, 2020

[Packetbeat] Refactor packetbeat for use with Elastic Agent (elastic#22134 )
Andrew Stucki
committed
Fix up changelog
Andrew Stucki
committed
Merge branch '7.x' into backport_22134_7.x
Andrew Stucki
committed