v0.4.0

Changelog

4ecf1c1 Release 0.4.0
6309abc Ignore bin dir in .gitignore
a2cf246 Remove _total from s3_objects_total metric name
7a53611 Improve release process
57dba2c Improve Dockerfile
3df8d10 Update deps & go 1.15
29995ae Merge pull request #13 from panos--/master
34bc9eb Update AWS SDK for IRSA support on EKS
a0982da Merge pull request #6 from kiuby/master
fdf2ad7 Merge pull request #5 from maxpospelov/master
6232f0e add last modified object size metric
20147fd Add Disable SSL and Force Path Style options.