[Minor] Use 1.0 as static score for dynamic symbols, erm

src/plugins/lua/multimap.lua

@@ -1024,7 +1024,7 @@ local function multimap_on_load_gen(rule)
         }
         rspamd_config:set_metric_symbol({
           group = N,
-          score = score,
+          score = 1.0, -- In future, we will parse score from `get_value` and use it as multiplier
           description = 'Automatic symbol generated by rule: ' .. rule.symbol,
           name = value,
         })