Fix an error getting the providerId that could cause getCurrentUser to fail on android

[kassamina]

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Documentation changes
• Other... Please describe:

PR Checklist

Please check your PR fulfills the following requirements:

Bugfixes:

• Regression testing has been carried out using the example project to ensure the intended bug is fixed and no regression bugs have been inadvertently introduced.

New features/enhancements:

• Exhaustive testing has been carried out for the new functionality
• Regression testing has been carried out to ensure no existing functionality is adversely affected
• Documentation has been added / updated
• The example project has been update to validate/demonstrate the new functionality.

What is the purpose of this PR?

This is to fix #662 Where getCurrentUser could fail on android

Does this PR introduce a breaking change?

• Yes
• No

What testing has been done on the changes in the PR?

Tested by including my fork of the plugin in our app, and getting the current user. Not just in dev but also in production.

What testing has been done on existing functionality?

The auth code has been throughly tested from tzappia's branch, but not based on your current dev build, with the other PRs recently merged. I will so some testing on it with those merged.

edit: Tested done on this branch, using the auth emulator and a pixel 6. I did not encounter any issues during testing.

Other information