Silence AWS plugin logs

[williamhpark]

Platform or tool

AWS

Desired or expected behavior

1. Initialize the AWS plugin: op plugin init aws
2. Run an aws command using the plugin, e.g. aws s3 ls

The command should run successfully with no unnecessary log output.

Current behavior

A few unnecessary lines of log output are outputted (shown in Relevant log output).

The source of these logs is /plugins/aws/sts_provisioner.go -> getAWSAuthConfigurationForProfile:

configFile, err := confighelpers.LoadConfigFromEnv()

A solution could be to silence the log output with log.SetOutput(io.Discard) then re-enable it, similar to in this PR:

// Disable log output produced by AWS Vault code
log.SetOutput(io.Discard)

// Read config file from the location set in AWS_CONFIG_FILE env var or from  ~/.aws/config
configFile, err := confighelpers.LoadConfigFromEnv()
if err != nil {
return nil, err
}

// Re-enable log output
log.SetOutput(os.Stdout)

Relevant log output

2023/04/28 10:40:34 Loading config file /Users/williampark/.aws/config
2023/04/28 10:40:34 Parsing config file /Users/williampark/.aws/config

op CLI version

No response