fix(deploy): deploying with service account

[zal1000]

Deploying with service account was not possible, becouse no checks were made for
GOOGLE_APPLICATION_CREDENTIALS env variable

Fixes #3260

Checklist

• Issue number for this PR: Deploy not working with service account in github actions #3260
• Docs included?: no
• Test units included?: no
• In a clean directory, yarn install, yarn test run successfully? yes

Description

Not trying to log into firebase CLI when GOOGLE_APPLICATION_CREDENTIALS are detected.
Doing that allows the deploy job to run in an automated env with a service account only

Code sample

[jamesdaniels]

Thanks for the fix, I'll look at merging this in for a patch release ASAP

[Kunal-Deshpande]

Hi,
Do we have any update merging this MR?
Firebase is deprecating the FIREBASE_TOKEN env variable for authentication. So need to authenticate using the service account.
It would be good if the application picked up the GOOGLE_APPLICATION_CREDENTIALS env variable.

[HmFlashy]

Is there any update on this matter? thanks

[HmFlashy]

Please could someone take care of this PR? It would be really awesome thanks

[davideast]

@zal1000 Thank you so much and a very serious apology for the late review.

[davideast]

Closing but was merged in #3396