Editor: update npm packages in trunk for 6.4.3.
Package Update includes fixes for:
- Image Block: Enable image block to be selected correctly when clicked.
- Reduce specificity of default Cover text color styles.
- Image Block: Fix deprecation when width/height attribute is number.
- Text selection: show CSS hack to Safari only.
- SlotFill: Allow contextual SlotFillProviders.
See: https://github.com/WordPress/wordpress-develop/pull/5696
See: bd6767b8a4
See: https://github.com/WordPress/gutenberg/pull/56043
See: https://github.com/WordPress/gutenberg/pull/56411
See: https://github.com/WordPress/gutenberg/pull/57063
See: https://github.com/WordPress/gutenberg/pull/57300
See: https://github.com/WordPress/gutenberg/pull/56779
Props mikachan, wildworks, alexstine, poena, isabel_brison, andrewserong, czapla, andraganescu, joen, ellatrix, youknowriad, ntsekouras.
Fixes #59943, #59943.
Built from https://develop.svn.wordpress.org/trunk@57258
git-svn-id: http://core.svn.wordpress.org/trunk@56764 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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