This updates the `devDependencies` for each of the default themes with `package.json` files with a few exceptions: - `eslint`: This was updated to the latest `8.x` version only since `9.x` is not yet properly supported by `@wordpress/eslint-plugin`. - `stylelint`-related packages: these updates are resulting in formatting changes. These need to be examined more carefully as they’re likely undesired and require adjustments to the configuration file. Props peterwilsoncc, desrosj. Fixes #63171. Built from https://develop.svn.wordpress.org/trunk@61206 git-svn-id: http://core.svn.wordpress.org/trunk@60542 1a063a9b-81f0-0310-95a4-ce76da25c4cd