[APP] Google Chat (App) - Use App authentication Strategy

**Name of app / service**
Google Chat

**Link to developer documentation**
https://developers.google.com/workspace/chat/authenticate-authorize-chat-app

**Is lack of support preventing you from moving forward, or do you have a workaround?**
Yes. Please add a new Google Chat (App) app for the App Authentication strategy (using service account)

**Are there specific actions or triggers, you'd like to see for this app? Please let us know here or use the Action and Trigger issue templates to open requests for each!**
I would like to have all components currently available in Google Chat app to be migrated here as well