chore(package): update libp2p-gossipsub to version 0.2.3 (#2738)

Co-authored-by: greenkeeper[bot] <23040076+greenkeeper[bot]@users.noreply.github.com>

Author: Alan Shaw

package.json

@@ -135,7 +135,7 @@
     "libp2p-delegated-content-routing": "^0.4.1",
     "libp2p-delegated-peer-routing": "^0.4.0",
     "libp2p-floodsub": "^0.20.0",
-    "libp2p-gossipsub": "^0.2.2",
+    "libp2p-gossipsub": "^0.2.3",
     "libp2p-kad-dht": "^0.18.3",
     "libp2p-keychain": "^0.6.0",
     "libp2p-mdns": "^0.13.0",