docs: fix URL of Algolia cron job (#7957)

www/apps/api-reference/vercel.json

@@ -1,6 +1,6 @@
 {
   "crons": [{
-    "path": "/api/algolia",
+    "path": "/v2/api/algolia",
     "schedule": "0 0 * * 4"
   }],
   "framework": "nextjs",
@@ -8,4 +8,4 @@
   "buildCommand": "turbo run build",
   "outputDirectory": ".next",
   "ignoreCommand": "bash ../../ignore-build-script.sh"
-}
+}