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

Author: renovate[bot]

package.json

@@ -74,7 +74,7 @@
     "markdown-to-jsx": "npm:@innei/markdown-to-jsx@7.1.3-beta.2",
     "medium-zoom": "1.0.8",
     "mermaid": "10.5.0",
-    "next": "13.5.3",
+    "next": "15.5.10",
     "next-seo": "6.1.0",
     "next-suspense": "0.2.3",
     "randomcolor": "0.6.2",