Update Tika version to be java 8 compliant.

(cherry picked from commit 7d9ba6e)

Author: iroqueta

gxcloudstorage-common/pom.xml

@@ -37,7 +37,7 @@
         <dependency>
             <groupId>org.apache.tika</groupId>
             <artifactId>tika-core</artifactId>
-            <version>3.2.0</version>
+            <version>2.9.4</version>
         </dependency>
     </dependencies>