chore: update hypercore-crypto to 3.4.2 (#777)

This updates hypercore-crypto to its latest version.

This project has no changelog but [perusing the commits][0] shows:

- Sub-dependency upgrades
- Minor security and performance improvements

[0]: https://github.com/holepunchto/hypercore-crypto/commits/main

Author: EvanHahn

package-lock.json

@@ -173,7 +173,7 @@
     "fastify-plugin": "^4.5.1",
     "hyperblobs": "2.3.0",
     "hypercore": "10.17.0",
-    "hypercore-crypto": "3.4.0",
+    "hypercore-crypto": "3.4.2",
     "hyperdrive": "11.5.3",
     "json-stable-stringify": "^1.1.1",
     "magic-bytes.js": "^1.10.0",