Merge: php: 8.2 -> 8.3 (#354568)

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- Create the first release note entry in this section!

- The default PHP version has been updated to 8.3.

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  user = "castopod";

  # https://docs.castopod.org/getting-started/install.html#requirements

  phpPackage = pkgs.php.withExtensions ({ enabled, all }: with all; [

  phpPackage = pkgs.php82.withExtensions ({ enabled, all }: with all; [

    intl

    curl

    mbstring

  # PHP interpreters, packages and extensions.

  #

  # Set default PHP interpreter, extensions and packages

  php = php82;

  php = php83;

  phpExtensions = php.extensions;

  phpPackages = php.packages;