VST3: Fixed a potential crash in Cubase10WindowResizeWorkaround::handleAsyncUpdate()

modules/juce_audio_plugin_client/VST3/juce_VST3_Wrapper.cpp

@@ -1495,8 +1495,9 @@ private:
 
             void handleAsyncUpdate() override
             {
-                if (auto* peer = owner.component->getPeer())
-                    peer->updateBounds();
+                if (owner.component != nullptr)
+                    if (auto* peer = owner.component->getPeer())
+                        peer->updateBounds();
             }
 
             JuceVST3Editor& owner;