Update spy_queue.schema.xml

add missing index to spy_queue_process

- queries to find processes by process id in Spryker's queue process manager use condition 'WHERE process_pid IN (...)', but column process_pid doesn't have an index

Author: berndalter-txb

src/Spryker/Zed/Queue/Persistence/Propel/Schema/spy_queue.schema.xml

@@ -16,6 +16,9 @@
             <index-column name="server_id"/>
             <index-column name="queue_name"/>
         </index>
+        <index name="spy_queue_process-index-process_pid-key">
+            <index-column name="process_pid"/>
+        </index>
         <behavior name="timestampable"/>
         <id-method-parameter value="spy_queue_process_pk_seq"/>
     </table>