Fix firebase-tools long install time

[trentrand]

Current CI runtime is currently ~90 seconds, and ~50 seconds of that is just for installing firebase-tools.

There's an issue where bun is slow at installing it, and even if we move away from bun, the FirebaseExtended/action-hosting-deploy doesn't use the installed module and re-installs it a second time.

This issue exists on web3 repo too. We should consider trying a different image than FirebaseExtended/action-hosting-deploy: https://github.com/marketplace?query=firebase+hosting