chore: add deps

Author: achingbrain

examples/js-libp2p-example-auto-tls/package.json

@@ -25,6 +25,7 @@
     "@libp2p/identify": "^3.0.13",
     "@libp2p/kad-dht": "^14.1.4",
     "@libp2p/keychain": "^5.0.11",
+    "@libp2p/ping": "^2.0.27",
     "@libp2p/upnp-nat": "^3.0.1",
     "@libp2p/websockets": "^9.1.0",
     "@multiformats/multiaddr-matcher": "^1.6.0",

examples/js-libp2p-example-discovery-mechanisms/package.json

@@ -24,6 +24,7 @@
     "@libp2p/identify": "^3.0.0",
     "@libp2p/kad-dht": "^14.0.0",
     "@libp2p/mdns": "^11.0.0",
+    "@libp2p/ping": "^2.0.27",
     "@libp2p/pubsub-peer-discovery": "^11.0.0",
     "@libp2p/tcp": "^10.0.0",
     "libp2p": "^2.0.0"

examples/js-libp2p-example-peer-and-content-routing/package.json

@@ -21,6 +21,7 @@
     "@chainsafe/libp2p-yamux": "^7.0.0",
     "@libp2p/identify": "^3.0.1",
     "@libp2p/kad-dht": "^14.0.0",
+    "@libp2p/ping": "^2.0.27",
     "@libp2p/tcp": "^10.0.0",
     "it-all": "^3.0.2",
     "libp2p": "^2.0.0",