Fix an error uploading laravel on Google App Engine -- 2

I'm looking for someone to help me fix an error on the upload of my laravel project to Google App Engine. The error is on the Google App Engine side. Fortunately, I do have access to the project log files, allowing you to diagnose the problem quickly and accurately. Additionally, I have tried debugging the issue, so everything should be ready for you to work on solutions.

Here below the error:
Your lock file does not contain a compatible set of packages. Please run composer update.

Problem 1
- lcobucci/jwt is locked to version 5.0.0 and an update of this package was not requested.
- lcobucci/jwt 5.0.0 requires ext-sodium * -> it is missing from your system. Install or enable PHP's sodium extension.
Problem 2
- lcobucci/jwt 5.0.0 requires ext-sodium * -> it is missing from your system. Install or enable PHP's sodium extension.
- kreait/firebase-tokens 4.2.0 requires lcobucci/jwt ^4.3.0|^5.0 -> satisfiable by lcobucci/jwt[5.0.0].
- kreait/firebase-tokens is locked to version 4.2.0 and an update of this package was not requested.

I have already run composer update but it does not work. Laravel works perfectly if run locally, so I believe it is due to how Google App Engine manages the sodium extension.

I need someone who knows how to fix this problem and who has experience with both Laravel and Google App Engine.