Exclude micrometer-core from artemis-server dependency

This was causing a version clash for micrometer-core
in spring-batch-test.

Author: fmbenhassine

spring-batch-infrastructure/pom.xml

@@ -270,6 +270,12 @@
 			<artifactId>artemis-server</artifactId>
 			<version>${artemis.version}</version>
 			<scope>test</scope>
+			<exclusions>
+				<exclusion>
+					<groupId>io.micrometer</groupId>
+					<artifactId>micrometer-core</artifactId>
+				</exclusion>
+			</exclusions>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.activemq</groupId>