update swarm

Author: daviddias

package.json

@@ -38,7 +38,7 @@
   },
   "dependencies": {
     "libp2p-spdy": "^0.4.0",
-    "libp2p-swarm": "^0.14.0",
+    "libp2p-swarm": "^0.15.0",
     "libp2p-tcp": "^0.5.2",
     "libp2p-websockets": "^0.5.0",
     "mafmt": "^2.0.0",
@@ -62,4 +62,4 @@
     "Stephen Whitmore <[email protected]>",
     "dignifiedquire <[email protected]>"
   ]
-}
+}