chore: update multibase dependency

License: MIT
Signed-off-by: Alan Shaw <alan.shaw@protocol.ai>

Author: Alan Shaw

package.json

@@ -49,7 +49,7 @@
     "lodash": "^4.17.11",
     "lru-cache": "^4.1.3",
     "multiaddr": "^5.0.0",
-    "multibase": "~0.5.0",
+    "multibase": "~0.6.0",
     "multihashes": "~0.4.14",
     "ndjson": "^1.5.0",
     "once": "^1.4.0",