added missing package

Author: pgte

package.json

@@ -95,6 +95,7 @@
     "boom": "^7.1.1",
     "byteman": "^1.3.5",
     "cids": "^0.5.2",
+    "concat-stream": "^1.6.0",
     "debug": "^3.1.0",
     "file-type": "^7.2.0",
     "filesize": "^3.5.11",