fix: resolve dependabot security alerts (#404)

packages/email-editor/package.json

@@ -24,7 +24,7 @@
     "@usesend/eslint-config": "workspace:*",
     "@usesend/typescript-config": "workspace:*",
     "@usesend/ui": "workspace:*",
-    "postcss": "^8.5.3",
+    "postcss": "^8.5.14",
     "prettier": "^3.5.3",
     "prettier-plugin-tailwindcss": "^0.6.11",
     "react": "^19.1.0",
@@ -54,7 +54,7 @@
     "@tiptap/starter-kit": "^2.11.7",
     "@tiptap/suggestion": "^2.11.7",
     "eslint": "^8.57.1",
-    "jsx-email": "^2.7.1",
+    "jsx-email": "^2.8.4",
     "lucide-react": "^0.503.0",
     "react-colorful": "^5.6.1",
     "shiki": "^3.3.0",