fix(UsersRepo): pass $value in auth0_update_meta filter

[QWp6t]

Description

The WP_Auth0_UsersRepo class manages WordPress user meta that is stored by Auth0.

The class contains a series of filters that allow developers to short-circuit methods. The idea behind this is that developers can implement their own way of managing user metadata stored by Auth0.

Currently the method for updating metadata does not pass the $value that is being updated. It only passes the key, which makes it impossible to adequately short-circuit.

References

• Add filter(s) to allow storing Auth0 user data somewhere other than in usermeta #811
• Add filters on user queries #812

Testing

The current test in TestUserRepoMeta::testUpdateMetaFilterWorksProperly does not adequately test this feature and should be updated.

This PR does not update the test.

• This change adds test coverage for new/changed/fixed functionality

Checklist

• I have added documentation for new/changed functionality in this PR or in auth0.com/docs
  • I added the proper doc block above the filter, but otherwise none of these filters appear to be documented elsewhere.
• All active GitHub checks for tests, formatting, and security are passing
• The correct base branch is being used, if not master

[evansims]

Hi @QWp6t 👋 Thanks for your contribution. Give me a big to investigate this and review. (Going to close and reopen the ticket to kick our stalled CircleCI test on this.)

[QWp6t]

[evansims]

[evansims]

LGTM! Thanks for your patience, and of course, your contribution. We'll get a release cut with this change shortly.