refactor(policy): add generic wildcard to PolicyRuleCondition

src/policy/src/main/java/eu/teraflow/policy/model/PolicyRuleCondition.java

@@ -24,7 +24,8 @@ public class PolicyRuleCondition {
     private final NumericalOperator numericalOperator;
     private final KpiValue<?> kpiValue;
 
-    public PolicyRuleCondition(String kpiId, NumericalOperator numericalOperator, KpiValue kpiValue) {
+    public PolicyRuleCondition(
+            String kpiId, NumericalOperator numericalOperator, KpiValue<?> kpiValue) {
         this.kpiId = kpiId;
         this.numericalOperator = numericalOperator;
         this.kpiValue = kpiValue;