gcs: add region us-east5 - fixes rclone#8863

Author: Dulani

backend/googlecloudstorage/googlecloudstorage.go

@@ -252,6 +252,9 @@ Docs: https://cloud.google.com/storage/docs/bucket-policy-only
 			}, {
 				Value: "us-east4",
 				Help:  "Northern Virginia",
+			}, {
+				Value: "us-east5",
+				Help:  "Ohio",
 			}, {
 				Value: "us-west1",
 				Help:  "Oregon",

docs/content/googlecloudstorage.md

@@ -100,7 +100,9 @@ Choose a number from below, or type in your own value
    \ "us-east1"
 13 / Northern Virginia.
    \ "us-east4"
-14 / Oregon.
+14 / Ohio.
+   \ "us-east5"
+15 / Oregon.
    \ "us-west1"
 location> 12
 The storage class to use when storing objects in Google Cloud Storage.