source-google-ads: 🎉 Add fields to the campaign stream

[mutt-santiago-stachuk]

Tell us about the problem you're trying to solve

• There are some missing key metrics, such as
• Records in campaigns lack granularity since it doesn't include the "segment.hour" field.

Describe the solution you’d like

• Add segments.hour field to increase granularity
• Add key metric fields to the stream such as metrics.ctr, metrics.conversions and metrics.conversions_value

Describe the alternative you’ve considered or used

If its not that feasible, we could make a new stream with the new granularity?

Are you willing to submit a PR?

Yes! number of PR is #18069

[harshithmullapudi]

Thanks a lot for bringing it up and also for the contribution. Team will look into it