Update gcs-connector to 3.1.5

Author: wendigo

pom.xml

@@ -469,7 +469,7 @@
             <dependency>
                 <groupId>com.google.cloud.bigdataoss</groupId>
                 <artifactId>gcs-connector</artifactId>
-                <version>3.1.4</version>
+                <version>3.1.5</version>
                 <classifier>shaded</classifier>
                 <exclusions>
                     <exclusion>