Update dependency @wordpress/browserslist-config to v4.1.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@wordpress/browserslist-config	4.1.2 -> 4.1.3

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Release Notes

WordPress/gutenberg

### [`v4.1.3`](https://togithub.com/WordPress/gutenberg/compare/@wordpress/browserslist-config@4.1.2...@wordpress/browserslist-config@4.1.3) [Compare Source](https://togithub.com/WordPress/gutenberg/compare/@wordpress/browserslist-config@4.1.2...@wordpress/browserslist-config@4.1.3)

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