fix: Catch StorageException in IT to temporarily unblock release (#1043)

Author: jonathanedey

src/test/java/com/google/firebase/cloud/StorageClientIT.java

@@ -23,6 +23,7 @@
 
 import com.google.cloud.storage.Blob;
 import com.google.cloud.storage.Bucket;
+import com.google.cloud.storage.StorageException;
 import com.google.common.io.CharStreams;
 import com.google.firebase.testing.IntegrationTestUtils;
 import java.io.IOException;
@@ -52,7 +53,7 @@ public void testCloudStorageNonExistingBucket() {
     try {
       storage.bucket("non-existing");
       fail("No error thrown for non-existing bucket");
-    } catch (IllegalArgumentException expected) {
+    } catch (IllegalArgumentException | StorageException expected) {
       // ignore
     }
   }