Workaround GCC 11.3 compiler bug (#339)

Compiling on GCC 11.3 breaks due to this compiler bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103871. Using the workaround in [this](https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103871#c10) comment seems to fix the issue.

Tested on 11.3 locally. Changes should be benign. No way to test this in CI without adding GCC 11.3 to the build matrix.

Authors:
  - Michael Demoret (https://github.com/mdemoret-nv)

Approvers:
  - David Gardner (https://github.com/dagardner-nv)

URL: #339

cpp/mrc/include/mrc/coroutines/ring_buffer.hpp

@@ -158,25 +158,44 @@ class RingBuffer
             return (!m_stopped ? RingBufferOpStatus::Success : RingBufferOpStatus::Stopped);
         }
 
-        WriteOperation& use_scheduling_policy(SchedulePolicy policy)
+        WriteOperation& use_scheduling_policy(SchedulePolicy policy) &
         {
             m_policy = policy;
             return *this;
         }
 
-        WriteOperation& resume_immediately()
+        WriteOperation use_scheduling_policy(SchedulePolicy policy) &&
+        {
+            m_policy = policy;
+            return std::move(*this);
+        }
+
+        WriteOperation& resume_immediately() &
         {
             m_policy = SchedulePolicy::Immediate;
             return *this;
         }
 
-        WriteOperation& resume_on(ThreadPool* thread_pool)
+        WriteOperation resume_immediately() &&
+        {
+            m_policy = SchedulePolicy::Immediate;
+            return std::move(*this);
+        }
+
+        WriteOperation& resume_on(ThreadPool* thread_pool) &
         {
             m_policy = SchedulePolicy::Reschedule;
             set_resume_on_thread_pool(thread_pool);
             return *this;
         }
 
+        WriteOperation resume_on(ThreadPool* thread_pool) &&
+        {
+            m_policy = SchedulePolicy::Reschedule;
+            set_resume_on_thread_pool(thread_pool);
+            return std::move(*this);
+        }
+
       private:
         friend RingBuffer;