* fix(gcs): resolve credential conflict in remote storage mount
Manually handle GCS credentials to avoid conflict with automatic discovery.
Fixes#8007
* fix(gcs): use %w for error wrapping in gcs_storage_client.go
Address review feedback to use idiomatic error wrapping.
The io/ioutil package has been deprecated as of Go 1.16, see
https://golang.org/doc/go1.16#ioutil. This commit replaces the existing
io/ioutil functions with their new definitions in io and os packages.
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>