Firebase extension doesn't let you use the new variable system

[MyNameIsRinax]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

Since GDevelop introduced its new variable system, the Firebase extension still hasn't received any updates that allow you to utilize the new features that comes with it such as local variables.

Steps to reproduce

Use any conditions/actions from the Firebase extension that have the variable parameter. Then try to search for any local/global variables.

GDevelop platform

Desktop, Web, Mobile

GDevelop version

5.5.220

Platform info

OS (e.g. Windows, Linux, macOS, Android, iOS)

OS Version (e.g. Windows 10, macOS 10.15)

Browser(For Web) (e.g. Chrome, Firefox, Safari)

Device(For Mobile) (e.g. iPhone 12, Samsung Galaxy S21)

Additional context

No response