Migrate to StandardReflectionParameterNameDiscoverer

- This is per deprecation notes in
  LocalVariableTableParameterNameDiscoverer
- Relates #1122

spring-statemachine-core/src/main/java/org/springframework/statemachine/processor/StateMachineMethodInvokerHelper.java

@@ -29,9 +29,9 @@
 import org.apache.commons.logging.LogFactory;
 import org.springframework.aop.framework.Advised;
 import org.springframework.aop.support.AopUtils;
-import org.springframework.core.LocalVariableTableParameterNameDiscoverer;
 import org.springframework.core.MethodParameter;
 import org.springframework.core.ParameterNameDiscoverer;
+import org.springframework.core.StandardReflectionParameterNameDiscoverer;
 import org.springframework.core.annotation.AnnotationAttributes;
 import org.springframework.core.annotation.AnnotationUtils;
 import org.springframework.core.convert.TypeDescriptor;
@@ -397,7 +397,7 @@ private static class HandlerMethod {
 
 		private static final SpelExpressionParser EXPRESSION_PARSER = new SpelExpressionParser();
 
-		private static final ParameterNameDiscoverer PARAMETER_NAME_DISCOVERER = new LocalVariableTableParameterNameDiscoverer();
+		private static final ParameterNameDiscoverer PARAMETER_NAME_DISCOVERER = new StandardReflectionParameterNameDiscoverer();
 
 		private final Method method;