Use R2 incremental cache for the template (#562)

Author: vicb

packages/cloudflare/templates/open-next.config.ts

@@ -1,7 +1,7 @@
 // default open-next.config.ts file created by @opennextjs/cloudflare
 import { defineCloudflareConfig } from "@opennextjs/cloudflare/config";
-import kvIncrementalCache from "@opennextjs/cloudflare/overrides/incremental-cache/kv-incremental-cache";
+import r2IncrementalCache from "@opennextjs/cloudflare/overrides/incremental-cache/r2-incremental-cache";
 
 export default defineCloudflareConfig({
-  incrementalCache: kvIncrementalCache,
+  incrementalCache: r2IncrementalCache,
 });

packages/cloudflare/templates/wrangler.jsonc

@@ -8,12 +8,11 @@
     "directory": ".open-next/assets",
     "binding": "ASSETS"
   },
-  "kv_namespaces": [
-    // Create a KV binding with the binding name "NEXT_INC_CACHE_KV"
-    // to enable the KV based caching:
+  "r2_buckets": [
+    // Create a binding to use R2 incremental cache
     // {
-    //   "binding": "NEXT_INC_CACHE_KV",
-    //   "id": "<BINDING_ID>"
-    // }
+    //   "binding": "NEXT_INC_CACHE_R2_BUCKET",
+    //   "bucket_name": "<BUCKET_NAME>",
+    // },
   ]
 }