feat: ipns libp2p fetch (#906)

Adds `@libp2p/fetch` functionality to the pubsub router of `helia/ipns`.
The pubsub router will libp2p/fetch the latest local record from new pubsub peers if libp2p.services.fetch is found.

https://specs.ipfs.tech/ipns/ipns-pubsub-router/#layering-persistence-onto-libp2p-pubsub

Closes #893

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Co-authored-by: Alex Potsides <alex@achingbrain.net>

Author: tabcat

packages/ipns/package.json

@@ -75,16 +75,21 @@
   "dependencies": {
     "@helia/interface": "^6.1.1",
     "@libp2p/crypto": "^5.1.7",
+    "@libp2p/fetch": "^4.1.0",
     "@libp2p/interface": "^3.2.0",
     "@libp2p/kad-dht": "^16.1.0",
     "@libp2p/keychain": "^6.0.5",
     "@libp2p/logger": "^6.0.5",
+    "@libp2p/peer-collections": "^7.0.14",
     "@libp2p/utils": "^7.0.5",
+    "any-signal": "^4.2.0",
+    "delay": "^7.0.0",
     "interface-datastore": "^9.0.2",
     "ipns": "^10.1.2",
     "multiformats": "^13.4.1",
     "progress-events": "^1.0.1",
     "protons-runtime": "^6.0.1",
+    "race-signal": "^2.0.0",
     "uint8arraylist": "^2.4.8",
     "uint8arrays": "^5.1.0"
   },