ci fixes

Cargo.toml

@@ -74,6 +74,7 @@ default = ["locking-default"]
 insta = "1.36.1"
 log = "0.4.21"
 tokio = { version = "=1.36.0", features = ["rt", "macros", "time"] }
+tokio-util = "=0.7.11"
 tracing = { version = "0.1.40", features = ["log"] }
 
 [[example]]

src/supervisor.rs

@@ -30,11 +30,11 @@ impl<T> Default for Supervisor<T> {
 macro_rules! vacant_entry {
     ($self:ident, $builder:ident) => {{
         let Some(name) = $builder.name.clone() else {
-                return Err(Error::SupervisorNameNotSpecified);
-            };
+                    return Err(Error::SupervisorNameNotSpecified);
+                };
         let btree_map::Entry::Vacant(entry) = $self.tasks.entry(name.clone()) else {
-                return Err(Error::SupervisorDuplicateTask(name));
-            };
+                    return Err(Error::SupervisorDuplicateTask(name));
+                };
         entry
     }};
 }