chore(repo): Update dependency next to v15.5.21 [SECURITY]

Author: renovate[bot]

packages/nextjs/package.json

@@ -92,7 +92,7 @@
   },
   "devDependencies": {
     "crypto-es": "^2.1.0",
-    "next": "15.5.19"
+    "next": "15.5.21"
   },
   "peerDependencies": {
     "next": "^15.2.8 || ^15.3.8 || ^15.4.10 || ^15.5.9 || ^15.6.0-0 || ^16.0.10 || ^16.1.0-0",

pnpm-workspace.yaml

@@ -51,6 +51,8 @@ minimumReleaseAgeExclude:
   - astro@6.1.6
   # Renovate security update: vite@6.4.2
   - vite@6.4.2
+  # Renovate security update: next@15.5.21
+  - next@15.5.21
 
 trustPolicy: no-downgrade
 trustPolicyExclude: