Bump github.com/libp2p/go-libp2p in /tests_interop/go_pkgs/examples

Bumps [github.com/libp2p/go-libp2p](https://github.com/libp2p/go-libp2p) from 0.10.3 to 0.18.0.
- [Release notes](https://github.com/libp2p/go-libp2p/releases)
- [Commits](https://github.com/libp2p/go-libp2p/compare/v0.10.3...v0.18.0)

---
updated-dependencies:
- dependency-name: github.com/libp2p/go-libp2p
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

tests_interop/go_pkgs/examples/go.mod

@@ -3,12 +3,10 @@ module interop
 go 1.12
 
 require (
-	github.com/ipfs/go-log v1.0.4
-	github.com/libp2p/go-libp2p v0.10.3
-	github.com/libp2p/go-libp2p-core v0.6.1
-	github.com/libp2p/go-libp2p-noise v0.1.1-0.20200507064022-02dc2ad5c414
+	github.com/ipfs/go-log v1.0.5
+	github.com/libp2p/go-libp2p v0.18.0
+	github.com/libp2p/go-libp2p-core v0.14.0
+	github.com/libp2p/go-libp2p-noise v0.3.0
 	github.com/libp2p/go-libp2p-secio v0.2.2
-	github.com/multiformats/go-multiaddr v0.3.0
-	github.com/whyrusleeping/go-logging v0.0.1
-	github.com/whyrusleeping/go-notifier v0.0.0-20170827234753-097c5d47330f // indirect
+	github.com/multiformats/go-multiaddr v0.5.0
 )