chore: upgrade to iroh at the @ feat-multipath branch (#91)

* chore: update to latest iroh and iroh-quinn and iroh-tickets
* bump MRSV

Author: ramfox

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ on:
       - main
 
 env:
-  MSRV: "1.81"
+  MSRV: "1.89"
   RUST_BACKTRACE: 1
   RUSTFLAGS: -Dwarnings
   IROH_FORCE_STAGING_RELAYS: "1"