PHP Unified SDK v9.3.0

This new major version implements subscriptions and updates dependencies.

What's Changed

  • Bump bitpay/key-utils from 2.1.0 to 2.1.1
  • Bump guzzlehttp/guzzle from 7.9.3 to 7.10.0
  • Bump squizlabs/php_codesniffer from 3.13.2 to 4.0.0
  • Bump symfony/console from 6.4.23 to 6.4.25
  • Bump symfony/yaml from 6.4.23 to 6.4.25
  • Implement Subscriptions
  • Update dependencies and tests, adding generated config files to gitignore, adding phpcs

Full Changelog: https://github.com/bitpay/php-bitpay-client-v2/compare/9.2.2...9.3.0