Fix unit test

CakeMail.RestClient.UnitTests/CakeMailRestClientTests.cs

@@ -36,14 +36,12 @@ public void RestClient_constructor()
 			var proxy = apiClient.Proxy;
 
 			// Assert
-			Assert.AreEqual(userAgent[0], "CakeMail .NET REST Client");
-#if DEBUG
-			Assert.AreEqual(userAgent[1], "1.0.0");
-#else
+			Assert.AreEqual(userAgentParts[0], "CakeMail .NET REST Client");
+
 			// Appveyor changes the build number with every commit, therefore we don't know ahead of time what the version will be.
 			// However, we do know that it shouldn't be 0.0.0
-			Assert.AreNotEqual(userAgent[1], "0.0.0");
-#endif
+			Assert.AreNotEqual(userAgentParts[1], "0.0.0");
+
 			Assert.AreEqual(new Uri($"https://{mockHost}"), baseUrl);
 			Assert.AreEqual(mockTimeout, timeout);
 			Assert.AreEqual(new Uri(string.Format("http://{0}:{1}", mockProxyHost, mockProxyPort)), ((WebProxy)proxy).Address);