fix(deps): update nextjs monorepo to v15.5.4

Author: renovate[bot]

package.json

@@ -29,7 +29,7 @@
     "clsx": "2.1.1",
     "date-fns": "4.1.0",
     "nanoid": "5.1.6",
-    "next": "15.4.0-canary.61",
+    "next": "15.5.4",
     "next-auth": "5.0.0-beta.25",
     "numbro": "2.5.0",
     "react": "19.1.1",
@@ -53,7 +53,7 @@
     "babel-plugin-react-compiler": "19.1.0-rc.3",
     "chokidar-cli": "^3.0.0",
     "eslint": "9.36.0",
-    "eslint-config-next": "15.4.0-canary.61",
+    "eslint-config-next": "15.5.4",
     "eslint-config-prettier": "10.1.8",
     "eslint-plugin-react-compiler": "19.1.0-rc.2",
     "jsdom": "26.1.0",