fix(Scripts/ShadowLabyrinth): Update Murmur script (#15970)

Co-authored-by: Gultask <100873791+Gultask@users.noreply.github.com>

src/common/Utilities/TaskScheduler.h

@@ -136,6 +136,9 @@ class TaskScheduler
 
         void ModifyIf(std::function<bool(TaskContainer const&)> const& filter);
 
+        /// Check if the group exists and is currently scheduled.
+        bool IsGroupQueued(group_t const group);
+
         bool IsEmpty() const;
     };
 
@@ -260,6 +263,9 @@ public:
     /// Hint: Use std::initializer_list for this: "{1, 2, 3, 4}"
     TaskScheduler& CancelGroupsOf(std::vector<group_t> const& groups);
 
+    /// Check if the group exists and is currently scheduled.
+    bool IsGroupScheduled(group_t const group);
+
     /// Delays all tasks with the given duration.
     template<class _Rep, class _Period>
     TaskScheduler& DelayAll(std::chrono::duration<_Rep, _Period> const& duration)