Changes to Update tool

changed the pattern of the request property assistant_id from ^aia_asst_*$ to ^aia_asst_.+$

changed the pattern of the request property policy/id from ^aia_plcy_*$ to ^aia_plcy_.+$

the id response's property pattern was changed from ^aia_tool_*$ to ^aia_tool_.+$ for the status 200

added the optional property url to the response with the 200 status