Fixing test and typeo (Azure#35226)

Co-authored-by: Min Woo Lee 🧊 <77083090+minwoolee-ms@users.noreply.github.com>

Author: minwoolee-msft

sdk/communication/Azure.Communication.CallAutomation/src/CallAutomationClient.cs

@@ -730,7 +730,7 @@ public virtual CallRecording GetCallRecording()
             }
         }
 
-        /// <summary>Get CallAtumation's EventProcessor for handling Call Automation's event more easily.</summary>
+        /// <summary>Get Call Automation's EventProcessor for handling Call Automation's event more easily.</summary>
         public virtual CallAutomationEventProcessor GetEventProcessor()
         {
             using DiagnosticScope scope = _clientDiagnostics.CreateScope($"{nameof(CallAutomationClient)}.{nameof(GetEventProcessor)}");

sdk/communication/Azure.Communication.CallAutomation/tests/Infrastructure/CallAutomationClientAutomatedLiveTestsBase.cs

@@ -76,11 +76,15 @@ public void TestSetup()
         [TearDown]
         public async Task CleanUp()
         {
-            await DeRegisterCallBackWithDispatcher();
-            await _recordedEventListener.DisposeAsync();
-            _eventstore.Clear();
-            _incomingcontextstore.Clear();
-            await Task.CompletedTask;
+            try
+            {
+                await _recordedEventListener.DisposeAsync();
+                _eventstore.Clear();
+                _incomingcontextstore.Clear();
+                await Task.CompletedTask;
+            }
+            catch
+            { }
         }
 
         public bool SkipCallingServerInteractionLiveTests