Issue:
The Google Play Deploy Step throws the following error:
"error: Failed to perform edit insert call, error: googleapi: Error 403: The caller does not have permission, forbidden"
Possible solutions:
Set the value of the BITRISE_DEPLOYER_SERVICE_ACCT_KEY Env Var into a valid URL containing your json file.
Upload the account key into the Generic File Storage section of the Code Signing tab on Bitrise directly.
Reference the resulting URL in the Service Account JSON key file path of the Google Play Deploy Step in your Workflow.