fix(deps): update dependency next to v15.4.7 [security]

Author: renovate[bot]

package.json

@@ -44,7 +44,7 @@
     "lodash": "^4.17.21",
     "motion": "^11.18.1",
     "nanoid": "^5.1.5",
-    "next": "15.1.4",
+    "next": "15.4.7",
     "notistack": "^3.0.1",
     "number-flip": "^1.2.3",
     "numbro": "^2.3.6",