HBASE-22329 Fix for warning The parameter forkMode is deprecated since version in hbase-spark-it (#30)

diff --git a/spark/hbase-spark-it/pom.xml b/spark/hbase-spark-it/pom.xml
index 9f5782d..17b4b5c 100644
--- a/spark/hbase-spark-it/pom.xml
+++ b/spark/hbase-spark-it/pom.xml
@@ -103,7 +103,8 @@
         <artifactId>maven-failsafe-plugin</artifactId>
         <configuration>
           <skip>false</skip>
-          <forkMode>always</forkMode>
+          <forkCount>1</forkCount>
+          <reuseForks>true</reuseForks>
           <!-- TODO: failsafe does timeout, but verify does not fail the build because of the timeout.
                I believe it is a failsafe bug, we may consider using surefire -->
           <forkedProcessTimeoutInSeconds>1800</forkedProcessTimeoutInSeconds>