chore: add patch for iroh dependencies (#69)

This PR updates the following dependencies to use their main branches:

- `iroh` from `https://github.com/n0-computer/iroh.git`
- `iroh-base` from `https://github.com/n0-computer/iroh.git`

Author: ramfox

Cargo.lock

@@ -31,3 +31,7 @@ n0-snafu = "0.2.1"
 [dev-dependencies]
 duct = "0.13.6"
 nix = { version = "0.29", features = ["signal", "process"] }
+
+[patch.crates-io]
+iroh = { git = "https://github.com/n0-computer/iroh.git", branch = "main" }
+iroh-base = { git = "https://github.com/n0-computer/iroh.git", branch = "main" }