Upgraded gson dependency to 2.8.0

Author: craigdbarber

kubernetes/pom.xml

@@ -202,7 +202,7 @@
     <swagger-core-version>1.5.12</swagger-core-version>
     <sundrio.version>0.9.2</sundrio.version>
     <okhttp-version>2.7.5</okhttp-version>
-    <gson-version>2.6.2</gson-version>
+    <gson-version>2.8.0</gson-version>
     <jodatime-version>2.9.3</jodatime-version>
     <maven-plugin-version>1.0.0</maven-plugin-version>
     <junit-version>4.12</junit-version>