srdb1/schema: added version attribute to version table schema

- to be coherent with the other tables schema

lib/srdb1/schema/version.xml

@@ -8,6 +8,7 @@
 
 <table id="version" xmlns:xi="http://www.w3.org/2001/XInclude">
     <name>version</name>
+    <version>1</version>
     <type db="mysql">&MYSQL_TABLE_TYPE;</type>
 
     <column id="table_name">