Bump @wordpress/i18n from 3.12.0 to 3.13.0 (#2110)
Bump @wordpress/i18n from 3.12.0 to 3.13.0 (#2110)

Bumps [@wordpress/i18n](https://github.com/WordPress/gutenberg/tree/HEAD/packages/i18n) from 3.12.0 to 3.13.0.
- [Release notes](https://github.com/WordPress/gutenberg/releases)
- [Changelog](https://github.com/WordPress/gutenberg/blob/master/packages/i18n/CHANGELOG.md)
- [Commits](https://github.com/WordPress/gutenberg/commits/@wordpress/i18n@3.13.0/packages/i18n)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>

Co-authored-by: dependabot-preview[bot] <6a4c1c4838f800d1998274cd5234e1f65c55e90c@users.noreply.github.com>
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