refactor: inline version of groovy-all

Author: php-coder

pom.xml

@@ -438,7 +438,7 @@
 		<dependency>
 			<groupId>org.codehaus.groovy</groupId>
 			<artifactId>groovy-all</artifactId>
-			<version>${groovy-old.version}</version>
+			<version>2.0.8</version>
 			<scope>test</scope>
 		</dependency>
 
@@ -560,8 +560,6 @@
 
 		<enforcer.plugin.version>3.6.2</enforcer.plugin.version>
 
-		<groovy-old.version>2.0.8</groovy-old.version>
-		
 		<!-- Redefine default value from spring-boot-dependencies -->
 		<h2.version>2.2.224</h2.version>