Issue Summary

Can no longer authenticate with the Google Drive Power-Up due to recent changes made by Google.

Steps to Reproduce

1. Open a board, and add the Google Drive Power-Up
2. Open the Google Drive Power-Up and select 'Link Google Drive Account'
3. Enter in Google account credentials
4. Error message appears that the app is blocked and there is no option to continue

Expected Results

Successful authentication with the Google Drive Power-Up

Actual Results

Error message appears:

This app is blocked
This app tried to access sensitive info in your Google Account. To keep your account safe, Google blocked this access.

Workaround

You can disable the Google Drive Power-Up from your boards and rely on Trello's native integration with Google Drive attachments.
More information about adding attachments to cards can be found here: https://support.atlassian.com/trello/docs/adding-attachments-to-cards/