Forgot to add the spark test

Author: sapessi

aws-serverless-java-container-spark/src/test/java/com/amazonaws/serverless/proxy/spark/InitExceptionHandlerTest.java

@@ -2,7 +2,7 @@
 
 
 import com.amazonaws.serverless.exceptions.ContainerInitializationException;
-import com.amazonaws.serverless.proxy.internal.AwsProxyExceptionHandler;
+import com.amazonaws.serverless.proxy.AwsProxyExceptionHandler;
 import com.amazonaws.serverless.proxy.AwsProxySecurityContextWriter;
 import com.amazonaws.serverless.proxy.internal.servlet.AwsProxyHttpServletRequestReader;
 import com.amazonaws.serverless.proxy.internal.servlet.AwsProxyHttpServletResponseWriter;