Changes to Search recordings

the allOf[subschema #2]/hits/items/callid response property's min was decreased from 1.00 to 0.00 for the response status 200

the allOf[subschema #2]/hits/items/callee response's property pattern was changed from ^\+[1-9][0-9]{5,32}$ to ^(\+[1-9][0-9]{5,32})?$ for the status 200