chore(deps-dev): bump @wordpress/env from 8.3.0 to 8.4.0

Bumps [@wordpress/env](https://github.com/WordPress/gutenberg/tree/HEAD/packages/env) from 8.3.0 to 8.4.0.
- [Release notes](https://github.com/WordPress/gutenberg/releases)
- [Changelog](https://github.com/WordPress/gutenberg/blob/trunk/packages/env/CHANGELOG.md)
- [Commits](https://github.com/WordPress/gutenberg/commits/@wordpress/[email protected]/packages/env)

---
updated-dependencies:
- dependency-name: "@wordpress/env"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -87,7 +87,7 @@
 		"@wordpress/e2e-test-utils-playwright": "^0.2.0",
 		"@wordpress/e2e-tests": "^7.9.0",
 		"@wordpress/element": "^5.14.0",
-		"@wordpress/env": "^8.3.0",
+		"@wordpress/env": "^8.4.0",
 		"@wordpress/scripts": "^26.9.0",
 		"conventional-changelog-simple-preset": "^1.0.20",
 		"eslint-config-wordpress": "^2.0.0",