Update wordpress monorepo

This MR contains the following updates:

Package	Type	Update	Change
@wordpress/browserslist-config (source)	devDependencies	patch	4.1.2 -> 4.1.3
@wordpress/stylelint-config (source)	devDependencies	patch	20.0.2 -> 20.0.3

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Release Notes

WordPress/gutenberg (@​wordpress/browserslist-config)

v4.1.3

Compare Source

WordPress/gutenberg (@​wordpress/stylelint-config)

v20.0.3

Compare Source

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