Groovy test: Fix format for MM instead of mm

https://build.spring.io/browse/INT-AT42SIO-498/

**Cherry-pick to 4.3.x and 4.2.x**

(cherry picked from commit 9de2856)

Conflicts:
	spring-integration-groovy/src/test/java/org/springframework/integration/groovy/config/GroovyServiceActivatorTests.java

Author: artembilan

spring-integration-groovy/src/test/java/org/springframework/integration/groovy/config/GroovyServiceActivatorTests-context.xml

@@ -33,15 +33,15 @@
 	<service-activator input-channel="inlineScriptInput">
 		<groovy:script customizer="groovyCustomizer" variables="date-ref=date">
 			<![CDATA[
-				return "inline-$payload : ${date.format('dd.mm.yyyy')}"
+				return "inline-$payload : ${date.format('dd.MM.yyyy')}"
 			]]>
 		</groovy:script>
 	</service-activator>
 
 	<service-activator input-channel="scriptWithoutVariablesInput">
 		<groovy:script>
 			<![CDATA[
-				return "withoutVariables-$payload : ${date.format('dd.mm.yyyy')}"
+				return "withoutVariables-$payload : ${date.format('dd.MM.yyyy')}"
 			]]>
 		</groovy:script>
 	</service-activator>

spring-integration-groovy/src/test/java/org/springframework/integration/groovy/config/GroovyServiceActivatorTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -148,7 +148,7 @@ public void inlineScript() throws Exception {
 			this.inlineScriptInput.send(message);
 		}
 
-		DateFormat format = new SimpleDateFormat("dd.mm.yyyy");
+		DateFormat format = new SimpleDateFormat("dd.MM.yyyy");
 
 		String now = format.format(new Date());
 
@@ -168,7 +168,7 @@ public void testScriptWithoutVariables() throws Exception {
 			this.scriptWithoutVariablesInput.send(message);
 		}
 
-		DateFormat format = new SimpleDateFormat("dd.mm.yyyy");
+		DateFormat format = new SimpleDateFormat("dd.MM.yyyy");
 
 		String now = format.format(new Date());