chore: change from ipfs to p2p protocol (#315)

https://github.com/multiformats/js-multiaddr/pull/76 changed the
default protocol from ipfs to p2p.

js-multiaddr is a transitive dependency of peer-info, so in order
to get this change, we had to bump the version of peer-info.

* fix: revert ipfs -> p2p change for some tests

As per PR feedback. Needed for backwards-compatibility.

src/index.js

@@ -326,7 +326,7 @@ class Node extends EventEmitter {
     this.peerInfo.multiaddrs.toArray().forEach((ma) => {
       if (!ma.getPeerId()) {
         maOld.push(ma)
-        maNew.push(ma.encapsulate('/ipfs/' + this.peerInfo.id.toB58String()))
+        maNew.push(ma.encapsulate('/p2p/' + this.peerInfo.id.toB58String()))
       }
     })
     this.peerInfo.multiaddrs.replace(maOld, maNew)