Handle .map files during bundling cache assets

Author: fwang

.changeset/sixty-falcons-ring.md

@@ -0,0 +1,5 @@
+---
+"open-next": patch
+---
+
+Handle .map files during bundling cache assets

packages/open-next/src/build.ts

@@ -461,6 +461,8 @@ function createCacheAssets(monorepoRoot: string, disableDynamoDBCache = false) {
             ...cacheFilesPath[newFilePath],
           };
           break;
+        case ".map":
+          break;
         default:
           console.warn(`Unknown file extension: ${ext}`);
           break;