fix(deps): update nextjs monorepo to v16

Author: renovate[bot]

frontends/main/package.json

@@ -16,7 +16,7 @@
     "@mitodl/course-search-utils": "^3.5.0",
     "@mitodl/mitxonline-api-axios": "^2025.11.24",
     "@mitodl/smoot-design": "^6.19.0",
-    "@next/bundle-analyzer": "^14.2.15",
+    "@next/bundle-analyzer": "^16.0.0",
     "@react-pdf/renderer": "^4.3.0",
     "@remixicon/react": "^4.2.0",
     "@sentry/nextjs": "^10.0.0",
@@ -30,7 +30,7 @@
     "jsdom": "^27",
     "lodash": "^4.17.21",
     "moment": "^2.30.1",
-    "next": "^15.5.2",
+    "next": "^16.0.0",
     "next-nprogress-bar": "^2.4.2",
     "ol-components": "0.0.0",
     "ol-utilities": "0.0.0",
@@ -56,7 +56,7 @@
     "@types/react-slick": "^0.23.13",
     "@types/slick-carousel": "^1",
     "eslint": "8.57.1",
-    "eslint-config-next": "^14.2.7",
+    "eslint-config-next": "^16.0.0",
     "http-proxy-middleware": "^3.0.0",
     "jest": "^29.7.0",
     "jest-extended": "^7.0.0",

frontends/ol-components/package.json

@@ -50,7 +50,7 @@
     "lodash": "^4.17.21",
     "lodash.throttle": "^4.1.1",
     "material-ui-popup-state": "^5.1.0",
-    "next": "^15.5.2",
+    "next": "^16.0.0",
     "ol-test-utilities": "0.0.0",
     "ol-utilities": "0.0.0",
     "react": "^19.0.0",

frontends/ol-utilities/package.json

@@ -7,7 +7,7 @@
     "./test-utils/factories": "./src/test-utils/factories.ts"
   },
   "peerDependencies": {
-    "next": "^15",
+    "next": "^16.0.0",
     "react": "19"
   },
   "sideEffects": false,

frontends/package.json

@@ -35,7 +35,7 @@
   },
   "version": "0.0.0",
   "devDependencies": {
-    "@next/eslint-plugin-next": "^14.2.7",
+    "@next/eslint-plugin-next": "^16.0.0",
     "@swc/core": "^1.11.29",
     "@swc/jest": "^0.2.38",
     "@testing-library/jest-dom": "^6.4.2",