deps!: update @libp2p/interface-peer-discovery to 2.0.0 (#176)

Updates the interface and symbol return type

Author: achingbrain

package.json

@@ -139,7 +139,7 @@
     "docs": "aegir docs"
   },
   "dependencies": {
-    "@libp2p/interface-peer-discovery": "^1.0.1",
+    "@libp2p/interface-peer-discovery": "^2.0.0",
     "@libp2p/interface-peer-info": "^1.0.7",
     "@libp2p/interface-peer-store": "^2.0.0",
     "@libp2p/interfaces": "^3.0.3",

src/index.ts

@@ -1,4 +1,4 @@
-import { symbol } from '@libp2p/interface-peer-discovery'
+import { peerDiscovery } from '@libp2p/interface-peer-discovery'
 import { EventEmitter } from '@libp2p/interfaces/events'
 import { logger } from '@libp2p/logger'
 import { peerIdFromString } from '@libp2p/peer-id'
@@ -95,7 +95,7 @@ class Bootstrap extends EventEmitter<PeerDiscoveryEvents> implements PeerDiscove
     this._init = options
   }
 
-  readonly [symbol] = true
+  readonly [peerDiscovery] = this
 
   readonly [Symbol.toStringTag] = '@libp2p/bootstrap'