Updating GCS dependency version (#89)

Author: hiranya911

pom.xml

@@ -347,18 +347,13 @@
         <dependency>
             <groupId>com.google.cloud</groupId>
             <artifactId>google-cloud-storage</artifactId>
-            <version>1.2.1</version>
+            <version>1.7.0</version>
         </dependency>
         <dependency>
             <groupId>com.google.cloud</groupId>
             <artifactId>google-cloud-firestore</artifactId>
             <version>0.25.0-beta</version>
         </dependency>
-        <dependency>
-            <groupId>com.google.api</groupId>
-            <artifactId>gax</artifactId>
-            <version>1.8.1</version>
-        </dependency>
 
         <!-- Utilities -->
         <dependency>