treewide: fix clippy lints

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I411be69ff31f9cb39cd4cdebc8985b366a6a6964

src/resolver.rs

@@ -100,6 +100,10 @@ impl DependencyResolver {
     })
   }
 
+  #[expect(
+    clippy::expect_used,
+    reason = "projects.len() == 1 is checked directly above"
+  )]
   async fn fetch_dependency(
     &self,
     dep_id: &str,
@@ -132,7 +136,7 @@ impl DependencyResolver {
     }
 
     if projects.len() == 1 {
-      Ok(projects.into_iter().next().unwrap())
+      Ok(projects.into_iter().next().expect("length is exactly 1"))
     } else {
       let mut merged = projects.remove(0);
       for project in projects {