[Filebeat] Fix hardcoded amazonaws.com endpoint#24861

Merged

kaiyan-sheng merged 4 commits intoelastic:masterfrom legoguy1000:24420-s3-endpoint

Apr 9, 2021

+75-10

Commits on Mar 30, 2021

elastic#24420 : Fix hardcoded amazonaws.com endpoint
legoguy1000
committed

Commits on Mar 31, 2021

Update unit tests
legoguy1000
committed

Commits on Apr 2, 2021

Update tests per review
legoguy1000
committed

Commits on Apr 6, 2021

update error output and add test
legoguy1000
committed