Cldr Utils version 2.23.0

Enhancements

• Adds support for https proxy for Cldr.Http.get/2. The proxy can be specified as an option to to Cldr.Http.get/2, as a configuration option under the :ex_cldr[:https_proxy] key, or from the environment variables HTTPS_PROXY or https_proxy. Thanks to @d-led for the PR and issue.