fix: revert libp2p-kad-dht bump

Author: Alan Shaw

package.json

@@ -130,7 +130,7 @@
     "libp2p": "~0.24.1",
     "libp2p-bootstrap": "~0.9.3",
     "libp2p-crypto": "~0.14.1",
-    "libp2p-kad-dht": "~0.13.0",
+    "libp2p-kad-dht": "~0.12.1",
     "libp2p-keychain": "~0.3.3",
     "libp2p-mdns": "~0.12.0",
     "libp2p-mplex": "~0.8.4",