<i18n dev> RFR: 8303853: Update ISO 3166 country codes table

[Naoto Sato]

On Thu, 9 Mar 2023 17:50:32 GMT, Justin Lu <jlu at openjdk.org> wrote:

> This PR incorporates all of the missing updates to ensure that `java.util.LocaleISOData.isoCountryTable` is on par with the official [ISO 3166 data](https://www.iso.org/obp/ui/#search/code/).

Marked as reviewed by naoto (Reviewer).

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PR: https://git.openjdk.org/jdk/pull/12954