Renamed deadline -> timeout for golangci (#4539)
Renamed deadline -> timeout for golangci (#4539)

See https://github.com/golangci/golangci-lint/pull/822 for background
hashicorp/terraform-provider-google-beta,hashicorp/terraform-provider-google-beta,hashicorp/terraform-provider-google-beta,hashicorp/terraform-provider-google-beta