chore(package): update ipfs-mfs to version 0.11.6 (#2247)

Author: Alan Shaw

package.json

@@ -96,7 +96,7 @@
     "ipfs-block-service": "~0.15.2",
     "ipfs-http-client": "^33.1.0",
     "ipfs-http-response": "~0.3.1",
-    "ipfs-mfs": "~0.11.5",
+    "ipfs-mfs": "~0.11.6",
     "ipfs-multipart": "~0.1.0",
     "ipfs-repo": "~0.26.6",
     "ipfs-unixfs": "~0.1.16",