First release of 2.3 series

Versioning Changes:

• Dropped support for PHP 8.0 and below.
• Updated dev dependencies

Deprecations:

• Symfony façade validators are no longer supported and were
  removed.

Fixes:

• KeySet now reports which extra keys are causing the rule to fail.
• Ensure empty strings are never a valid currency code
• Do not hide messages on EachException
• Dot not throw exception when validating an uninitialized property

Changes:

• You can no longer wrap KeySet in Not.
• Phone now uses giggsey/libphonenumber-for-php, this package needs
  to be installed if you want to use this validator.
• Phone now supports the parameter $countryCode to validate phones
  of a specific country.