fix: add support for all request types when building a user from request.

[sammyskills]

Previously, the ValidationRules::buildUserFromRequest() only checks for POSTed requests.

With this PR, it can now check for any type of request including json requests.

Fixes #612

[datamweb]

LGTM.
See what Kenjis says.

[kenjis]

Can you tell me why you need this? A use case?

[sammyskills]

Can you tell me why you need this? A use case?

Yes.

A use case is trying to register users using JWT authentication.
If the developer expects the request to be sent as a JSON request, and the strong password rulestrong_password is added to the validation rules, it will return an error.

[kenjis]

@sammyskills Thanks. I think strong_password[] works.

There is a PHPStan error.

[kenjis]

We cannot remove the method call, so suppress the PHPStan error at that point.

 ------ -------------------------------------------------------------- 
  Line   src/Authentication/Passwords/ValidationRules.php              
 ------ -------------------------------------------------------------- 
  42     Call to deprecated method buildUserFromRequest() of class     
         CodeIgniter\Shield\Authentication\Passwords\ValidationRules:  
         This will be removed soon.                                    
 ------ -------------------------------------------------------------- 

https://github.com/codeigniter4/shield/actions/runs/5031981449/jobs/9025363859?pr=747

[sammyskills]

Fixed.

[kenjis]

@sammyskills Thank you!