fix rounding for integer

Author: Tieske

spec/extra/errors/collect_all_errors.json

@@ -76,7 +76,7 @@
                 "data": ["aa", "bb", "cc", "dd", "ee", "ff"],
                 "valid": false,
                 "error_entries": [
-                    {"schema_path": "/maxItems", "instance_path": "", "error": "expect array to have at most 5.0 items"}
+                    {"schema_path": "/maxItems", "instance_path": "", "error": "expect array to have at most 5 items"}
                 ]
             }
         ]

src/resty/ljsonschema/init.lua

@@ -800,12 +800,12 @@ generate_validator = function(ctx, schema)
       ctx:stmt(sformat(  '  local itemcount = #%s', ctx:param(1)))
       if schema.minItems then
         ctx:stmt(sformat('  if itemcount < %d then', schema.minItems))
-        ctx:handle_error('    ', sformat('"expect array to have at least %s items"', schema.minItems), '"/minItems"', '""')
+        ctx:handle_error('    ', sformat('"expect array to have at least %s items"', math.floor(schema.minItems)), '"/minItems"', '""')
         ctx:stmt(        '  end')
       end
       if schema.maxItems then
         ctx:stmt(sformat('  if itemcount > %d then', schema.maxItems))
-        ctx:handle_error('    ', sformat('"expect array to have at most %s items"', schema.maxItems), '"/maxItems"', '""')
+        ctx:handle_error('    ', sformat('"expect array to have at most %s items"', math.floor(schema.maxItems)), '"/maxItems"', '""')
         ctx:stmt(        '  end')
       end
     end