chore: regenerate API index

Google APIs · Google APIs · commit b518c5554e5e · 2021-09-29T20:39:06.000Z
diff --git a/api-index-v1.json b/api-index-v1.json
@@ -28879,6 +28879,7 @@
       "description": "The Cloud Filestore API is used for creating and managing cloud file servers.",
       "importDirectories": [
         "google/api",
+        "google/cloud/common",
         "google/longrunning",
         "google/protobuf"
       ],
