fix(next): drop support for Next.js versions with known CVEs, add canary 16.2.0 support (#15547)

Removes support for older Next.js versions with known CVEs by raising
the minimum supported version for each minor (^15.2.9, ^15.3.9,
^15.4.11, ^15.5.10) and dropping the 16.1.x canary range entirely.

Also changes `^16.2.0` to `>=16.2.0-canary.10 <17.0.0` to properly
support Next.js 16.2.0 canary builds - the previous range didn't match
16.2.0-canary.* versions.

`15.5.*` has been removed from peerDependencies, as we never fully
supported it - our test suite doesn't pass on 15.5.*.

This also bumps the monorepo's `next` devDependency to the latest canary
to guarantee compatibility with the latest canary.

With the canary version now matching the peerDependencies, this
internally fixes support for running our test suites using postgres in
our monorepo.

Author: AlessioGr

package.json

@@ -157,7 +157,7 @@
   "devDependencies": {
     "@axe-core/playwright": "4.11.0",
     "@libsql/client": "0.14.0",
-    "@next/bundle-analyzer": "16.2.0-canary.9",
+    "@next/bundle-analyzer": "16.2.0-canary.29",
     "@payloadcms/db-postgres": "workspace:*",
     "@payloadcms/eslint-config": "workspace:*",
     "@payloadcms/eslint-plugin": "workspace:*",
@@ -193,7 +193,7 @@
     "lint-staged": "15.2.7",
     "minimist": "1.2.8",
     "mongoose": "8.15.1",
-    "next": "16.2.0-canary.9",
+    "next": "16.2.0-canary.29",
     "node-gyp": "12.2.0",
     "open": "^10.1.0",
     "p-limit": "^5.0.0",

packages/next/package.json

@@ -131,7 +131,7 @@
     "@babel/preset-env": "7.27.2",
     "@babel/preset-react": "7.27.1",
     "@babel/preset-typescript": "7.27.1",
-    "@next/eslint-plugin-next": "16.2.0-canary.9",
+    "@next/eslint-plugin-next": "16.2.0-canary.29",
     "@payloadcms/eslint-config": "workspace:*",
     "@types/busboy": "1.5.4",
     "@types/react": "19.2.9",
@@ -145,7 +145,7 @@
   },
   "peerDependencies": {
     "graphql": "^16.8.1",
-    "next": "^15.4.10 || >=16.1.1-canary.35 <16.2.0 || ^16.2.0",
+    "next": ">=15.2.9 <15.3.0 || >=15.3.9 <15.4.0 || >=15.4.11 <15.5.0 || >=16.2.0-canary.10 <17.0.0",
     "payload": "workspace:*"
   },
   "engines": {

packages/ui/package.json

@@ -178,7 +178,7 @@
     "payload": "workspace:*"
   },
   "peerDependencies": {
-    "next": "^15.2.8 || ^15.3.8 || ^15.4.10 || ^15.5.9 || >=16.1.1-canary.35 <16.2.0 || ^16.2.0",
+    "next": ">=15.2.9 <15.3.0 || >=15.3.9 <15.4.0 || >=15.4.11 <15.5.0 || >=16.2.0-canary.10 <17.0.0",
     "payload": "workspace:*",
     "react": "^19.0.1 || ^19.1.2 || ^19.2.1",
     "react-dom": "^19.0.1 || ^19.1.2 || ^19.2.1"