[Rspamd] Increase score for BAD_REP_POLICIES

data/conf/rspamd/local.d/metrics.conf

@@ -30,3 +30,7 @@ group "MX" {
 symbol "CTYPE_MIXED_BOGUS" {
   score = 0.0;
 }
+
+symbol "BAD_REP_POLICIES" {
+  score = 2.5;
+}