Bump google-cloud-storage from 1.29.2 to 1.30.0

Bumps [google-cloud-storage](https://github.com/googleapis/google-cloud-ruby) from 1.29.2 to 1.30.0.
- [Release notes](https://github.com/googleapis/google-cloud-ruby/releases)
- [Commits](googleapis/google-cloud-ruby@google-cloud-storage/v1.29.2...google-cloud-storage/v1.30.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Gemfile.lock

@@ -137,7 +137,7 @@ GEM
       faraday-net_http (~> 1.0)
       multipart-post (>= 1.2, < 3)
       ruby2_keywords
-    faraday-net_http (1.0.0)
+    faraday-net_http (1.0.1)
     ffi (1.14.2)
     ffi-compiler (1.0.1)
       ffi (>= 1.0.0)
@@ -153,25 +153,30 @@ GEM
     georuby (2.0.0)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
-    google-api-client (0.52.0)
+    google-apis-core (0.2.0)
       addressable (~> 2.5, >= 2.5.1)
-      googleauth (~> 0.9)
+      googleauth (~> 0.14)
       httpclient (>= 2.8.1, < 3.0)
       mini_mime (~> 1.0)
       representable (~> 3.0)
       retriable (>= 2.0, < 4.0)
       rexml
-      signet (~> 0.12)
+      signet (~> 0.14)
+    google-apis-iamcredentials_v1 (0.1.0)
+      google-apis-core (~> 0.1)
+    google-apis-storage_v1 (0.1.0)
+      google-apis-core (~> 0.1)
     google-cloud-core (1.5.0)
       google-cloud-env (~> 1.0)
       google-cloud-errors (~> 1.0)
     google-cloud-env (1.4.0)
       faraday (>= 0.17.3, < 2.0)
     google-cloud-errors (1.0.1)
-    google-cloud-storage (1.29.2)
+    google-cloud-storage (1.30.0)
       addressable (~> 2.5)
       digest-crc (~> 0.4)
-      google-api-client (~> 0.33)
+      google-apis-iamcredentials_v1 (~> 0.1)
+      google-apis-storage_v1 (~> 0.1)
       google-cloud-core (~> 1.2)
       googleauth (~> 0.9)
       mini_mime (~> 1.0)