deps: update dependency com.google.cloud:google-cloud-storage to v2.1.6 (#708)

* deps: update dependency com.google.cloud:google-cloud-storage to v2.1.6

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samples/install-without-bom/pom.xml

@@ -35,7 +35,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-storage</artifactId>
-      <version>2.1.5</version>
+      <version>2.1.6</version>
     </dependency>
     <dependency>
       <groupId>net.sourceforge.argparse4j</groupId>

samples/snapshot/pom.xml

@@ -35,7 +35,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-storage</artifactId>
-      <version>2.1.5</version>
+      <version>2.1.6</version>
     </dependency>
     <dependency>
       <groupId>net.sourceforge.argparse4j</groupId>