[SDK-3719] Fix PHP 8.0+ SdkConfiguration named arguments usage

[evansims]

Changes

This PR addresses an issue with the SdkConfiguration class when named arguments are used for configuration in PHP 8.0+ — specifically, validation of those properties when set with named arguments.

References

Resolves auth0/laravel-auth0#319

Testing

Contributor Checklist

• I have read the Auth0 general contribution guidelines
• I have read the Auth0 code of conduct

[codecov-commenter]

Codecov Report

Base: 95.64% // Head: 95.32% // Decreases project coverage by -0.31% ⚠️

Coverage data is based on head (d2b98f1) compared to base (bf777e2).
Patch coverage: 77.52% of modified lines in pull request are covered.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #654      +/-   ##
============================================
- Coverage     95.64%   95.32%   -0.32%     
- Complexity     1159     1204      +45     
============================================
  Files            65       65              
  Lines          4066     4153      +87     
============================================
+ Hits           3889     3959      +70     
- Misses          177      194      +17     

Impacted Files	Coverage Δ
src/Configuration/SdkConfiguration.php	74.95% <77.52%> (+1.11%)	⬆️

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