fix: bump react to 19.2.1 and next to 15.4.8 (#484)

Author: jacobsfletch

package.json

@@ -53,16 +53,16 @@
     "graphql": "16.8.1",
     "gray-matter": "^4.0.3",
     "instantsearch.js": "^4.72.2",
-    "next": "15.3.3",
+    "next": "15.4.8",
     "next-sitemap": "^4.0.6",
     "node-cron": "^3.0.3",
     "nodemailer-sendgrid": "^1.0.3",
     "payload": "3.43.0",
     "prism-react-renderer": "^2.3.1",
     "qs-esm": "7.0.2",
-    "react": "19.1.0",
+    "react": "19.2.1",
     "react-cookie": "^4.1.1",
-    "react-dom": "19.1.0",
+    "react-dom": "19.2.1",
     "react-facebook-pixel": "^1.0.4",
     "react-google-recaptcha": "^3.1.0",
     "react-instantsearch": "^7.15.3",