chore: clean up some bits (#3039)

## Description

<!-- A summary of what this pull request achieves and a rough list of
changes. -->

## Breaking Changes

<!-- Optional, if there are any breaking changes document them,
including how to migrate older code. -->

## Notes & open questions

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## Change checklist

- [ ] Self-review.
- [ ] Documentation updates following the [style
guide](https://rust-lang.github.io/rfcs/1574-more-api-documentation-conventions.html#appendix-a-full-conventions-text),
if relevant.
- [ ] Tests if relevant.
- [ ] All breaking changes documented.

Cargo.toml

@@ -40,4 +40,4 @@ missing_debug_implementations = "warn"
 unexpected_cfgs = { level = "warn", check-cfg = ["cfg(iroh_docsrs)"] }
 
 [workspace.lints.clippy]
-unused-async = "warn"
+unused-async = "warn"

iroh-relay/Cargo.toml

@@ -141,4 +141,4 @@ required-features = ["server"]
 
 [package.metadata.docs.rs]
 all-features = true
-rustdoc-args = ["--cfg", "iroh_docsrs"]
+rustdoc-args = ["--cfg", "iroh_docsrs"]

iroh-relay/src/main.rs

@@ -479,7 +479,7 @@ async fn maybe_load_tls(
 
             let cert_path = tls.cert_path();
             let key_path = tls.key_path();
-            let interval = std::time::Duration::from_secs(relay::DEFAULT_CERT_RELOAD_INTERVAL);
+            let interval = relay::DEFAULT_CERT_RELOAD_INTERVAL;
 
             let key_reader = rustls_cert_file_reader::FileReader::new(
                 key_path,

iroh-relay/src/server/resolver.rs

@@ -9,7 +9,7 @@ use rustls::{
 use tokio_util::{sync::CancellationToken, task::AbortOnDropHandle};
 
 /// The default certificate reload interval.
-pub const DEFAULT_CERT_RELOAD_INTERVAL: u64 = 60 * 60 * 24;
+pub const DEFAULT_CERT_RELOAD_INTERVAL: Duration = Duration::from_secs(60 * 60 * 24);
 
 /// A Certificate resolver that reloads the certificate every interval
 #[derive(Debug)]