* added support for using GOOGLE_CREDENTIALS environment variable for authenticating with gs:// file state
* modified the change to fix#2791 as well
* fixed a small bug
* fixed linter error
* added code comments
* Update pkg/backend/filestate/gcpauth.go
Co-Authored-By: CyrusNajmabadi <cyrus.najmabadi@gmail.com>
* Parse provided backend url to check if scheme is gs://
* Update changelog
