fix: Fix issues clang-tidy found (#1708)

Fixes #1706.

src/util/CoroutineGroup.hpp

@@ -54,6 +54,14 @@ public:
      */
     ~CoroutineGroup();
 
+    /**
+     * @brief Check if a new coroutine can be spawned (i.e. there is space for a new coroutine in the group)
+     *
+     * @return true If a new coroutine can be spawned. false if the maximum number of coroutines has been reached
+     */
+    bool
+    canSpawn() const;
+
     /**
      * @brief Spawn a new coroutine in the group
      *