chore(deps): update nextjs monorepo to ^15.5.7

Author: renovate[bot]

apps/frontend/package.json

@@ -57,7 +57,7 @@
         "@dxp/eslint-config": "*",
         "@dxp/prettier-config": "*",
         "@dxp/typescript-config": "*",
-        "@next/bundle-analyzer": "^15.5.5",
+        "@next/bundle-analyzer": "^15.5.7",
         "@svgr/webpack": "^8.1.0",
         "@trivago/prettier-plugin-sort-imports": "^5.2.2",
         "@turbo/gen": "^2.5.8",
@@ -69,7 +69,7 @@
         "@types/throttle-debounce": "^5.0.2",
         "dotenv": "^17.2.3",
         "eslint": "^9.37.0",
-        "eslint-config-next": "^15.5.5",
+        "eslint-config-next": "^15.5.7",
         "postcss": "^8.5.6",
         "prettier": "^3.6.2",
         "sass": "^1.93.2",