HADOOP-15818. Fix deprecated maven-surefire-plugin configuration in hadoop-kms module

This closes #425

Signed-off-by: Akira Ajisaka <aajisaka@apache.org>

hadoop-common-project/hadoop-kms/pom.xml

@@ -186,7 +186,8 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
         <configuration>
-          <forkMode>always</forkMode>
+          <forkCount>1</forkCount>
+          <reuseForks>false</reuseForks>
           <threadCount>1</threadCount>
           <forkedProcessTimeoutInSeconds>600</forkedProcessTimeoutInSeconds>
           <properties>