fix: allow regex resource names with all control behaviors

Previously, regex resource names were only allowed with
CONTROL_BEHAVIOR_DEFAULT (fast failure). This restriction
prevented users from using warm-up or queue behaviors with
regex-matched resources.

Now regex resource names can be used with any control behavior,
as long as the rule is not in cluster mode.

Fixes #3544

Author: EvanYao826

sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/block/flow/FlowRuleUtil.java

@@ -246,7 +246,7 @@ private static boolean checkRegexField(FlowRule rule) {
             return false;
         }
         if (rule.isRegex()) {
-            return !rule.isClusterMode() && rule.getControlBehavior() == RuleConstant.CONTROL_BEHAVIOR_DEFAULT;
+            return !rule.isClusterMode();
         }
         return true;
     }