Update EventGrid test packages.config to use latest version of EventHub SDK

Author: cormacpayne

src/ResourceManager/EventGrid/Commands.EventGrid.Test/packages.config

@@ -6,7 +6,7 @@
   <package id="Microsoft.Azure.Gallery" version="2.6.2-preview" targetFramework="net45" />
   <package id="Microsoft.Azure.Management.Authorization" version="1.0.2" targetFramework="net45" />
   <package id="Microsoft.Azure.Management.EventGrid" version="1.0.0-preview" targetFramework="net461" />
-  <package id="Microsoft.Azure.Management.EventHub" version="2.0.0" targetFramework="net452" />
+  <package id="Microsoft.Azure.Management.EventHub" version="2.0.3" targetFramework="net452" />
   <package id="Microsoft.Azure.Management.Resources" version="2.20.0-preview" targetFramework="net45" />
   <package id="Microsoft.Azure.Management.Websites" version="1.2.0-preview" targetFramework="net45" />
   <package id="Microsoft.Azure.Test.HttpRecorder" version="1.7.0" targetFramework="net45" />
@@ -28,4 +28,4 @@
   <package id="xunit.extensibility.core" version="2.1.0" targetFramework="net45" />
   <package id="xunit.extensibility.execution" version="2.1.0" targetFramework="net45" />
   <package id="xunit.runner.visualstudio" version="2.1.0" targetFramework="net45" />
-</packages>
+</packages>