fix: admin-core/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-AXIOS-12613773

Author: snyk-bot

admin-core/package.json

@@ -14,7 +14,7 @@
 		"@tailwindcss/forms": "^0.4.0",
 		"@tailwindcss/typography": "^0.5.1",
 		"@wordpress/plugins": "^7.14.0",
-		"browser-sync": "^2.26.14",
+		"browser-sync": "^3.0.0",
 		"browser-sync-webpack-plugin": "^2.2.2",
 		"classnames": "^2.2.6",
 		"html-entities": "^1.3.1",