Update googleauth dependancy to support AWS Workload Identity Federation

[DValentiev]

While trying to use external_account credentials with AWS I am getting this.

2024-02-20 07:13:53 +0000 [warn]: #0 got unrecoverable error in primary and no secondary error_class=NoMethodError error="undefined method `expired?' for #<Google::Auth::ExternalAccount::AwsCredentials:0x0000ffffa7e52a48>"

Right now googleauth == 1.3.0, AWS WIF was introduced in 1.5.0.
Please update.

[DValentiev]

I believe @client should be handling token refresh.
After updating googleauth dependency and removing renewal logic from out_google_cloud.rb:1853 the plugin worked for me:

def api_client @client end