chore(deps-dev): bump next from 16.1.6 to 16.2.6 (#31)

P0 security: addresses 7 High + 4 Moderate + 2 Low Next.js advisories (GHSA-8h8q-6873-q5fj, GHSA-267c-6grr-h53f, GHSA-26hh-7cqf-hhc6, GHSA-mg66-mrh9-m8jx, GHSA-492v-c6pp-mqqv, GHSA-c4j6-fc7j-m34r, GHSA-36qx-fr4f-26g5, and others).

Author: dependabot[bot]

packages/domscribe-next/package.json

@@ -18,7 +18,7 @@
   },
   "devDependencies": {
     "@types/react": "^18.2.0",
-    "next": ">=15.0.0",
+    "next": ">=16.2.6",
     "react": "^19.0.0",
     "webpack": "^5.102.0"
   },