You can request for a quota increase through your GCP Console. Just follow the steps below:
1.) Login to your GCP Console admin account.
2.) On the navigation menu, click on IAM & Admin -> Quotas.
3.) Select the API service that you will request for an increase. Tick the checkbox on the right side of the console then click EDIT QUOTAS in the top part of the screen.
4.) Specify the new quota limit that you want and you are done with the request.
Quota increase requests usually take 2-3 days.
Reference
Increasing API Quota
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…