Add Inputs to GitHub Actions Workflows - GitHub Actions Tutorial

Great video. Many thanks for this. I have been struggling with one thing. I have adopted approach of choice input workflow with 3 environments (uat, dev, prd). However, while authenticating in GCP cloud for dev or uat or prod it should select correct service account. Which i am not able to figure out. I don't wanna use if clause. Is there any dynamic option to select appropriate service account when i select environment?

Can we have dynamic a input based on the previous inputs selected. For eg: we have one input as 'Database' and then depending on the value chosen our next input will be populated with 'Tables' within that database?