🐛 Source Google Ads: Remove metrics from ad group for manager account

[darynaishchenko]

What

Resolved:#33494 (comment)
The update to add a new field to the ad_group stream is leading to errors for users with the connector set up using a manager account. This is because metrics are not accessible for manager accounts

How

Removed metrics.cost_micros from Ad Group Stream query for manager account.

🚨 User Impact 🚨

Users with manager account will sync Ad Group stream without query error.

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[tolik0]

@darynaishchenko, Could you please add a unit test to check if non-manager streams don't have metrics in fields to avoid such issues in the future?

[darynaishchenko]

@darynaishchenko, Could you please add a unit test to check if non-manager streams don't have metrics in fields to avoid such issues in the future?

@tolik0 test was added