Fix code lookup

Signed-off-by: Fred Boniface <fred@fjla.uk>

src/services/pis.services.js

@@ -31,7 +31,7 @@ async function findPisByCode(code) {
   log.out(`pisServices.findPisByCode: Searching for PIS code: ${code}`);
   const cleanCode = clean.removeNonNumeric(code);
   const query = {
-    code: cleanCode
+    'code': cleanCode
   };
   const search = db.query('pis', parseInt(query));
   return await search;