HDDS-826. Update Ratis to 0.3.0-6f3419a-SNAPSHOT.

hadoop-project/pom.xml

@@ -101,7 +101,7 @@
     <ldap-api.version>1.0.0-M33</ldap-api.version>
 
     <!-- Apache Ratis version -->
-    <ratis.version>0.3.0-1d07b18-SNAPSHOT</ratis.version>
+    <ratis.version>0.3.0-6f3419a-SNAPSHOT</ratis.version>
     <jcache.version>1.0-alpha-1</jcache.version>
     <ehcache.version>3.3.1</ehcache.version>
     <hikari.version>2.4.12</hikari.version>