deps(libp2p): bump @libp2p/pubsub-peer-discovery from 8.0.6 to 9.0.0 (#2066)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Chad Nehemiah <chad.nehemiah94@gmail.com>

Author: dependabot[bot]

examples/discovery-mechanisms/package.json

@@ -36,7 +36,7 @@
     "@libp2p/floodsub": "^8.0.0",
     "@libp2p/mdns": "^9.0.0",
     "@libp2p/mplex": "^9.0.0",
-    "@libp2p/pubsub-peer-discovery": "^8.0.4",
+    "@libp2p/pubsub-peer-discovery": "^9.0.0",
     "@libp2p/tcp": "^8.0.0",
     "libp2p": "^0.46.0"
   },