chore: update generated docs (#1115)

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Source-Link: https://github.com/googleapis/discovery-artifact-manager/commit/0bed8bdae25d545e796cfcdd7a9bfffff11e69da
Source-Link: https://github.com/googleapis/synthtool/commit/c2de32114ec484aa708d32012d1fa8d75232daf5
diff --git a/docs/dyn/youtube_v3.thumbnails.html b/docs/dyn/youtube_v3.thumbnails.html
index 23545ed..459af44 100644
--- a/docs/dyn/youtube_v3.thumbnails.html
+++ b/docs/dyn/youtube_v3.thumbnails.html
@@ -104,39 +104,39 @@
   An object of the form:
 
     {
-    "etag": "A String", # Etag of this resource.
     "kind": "youtube#thumbnailSetResponse", # Identifies what kind of resource this is. Value: the fixed string "youtube#thumbnailSetResponse".
     "eventId": "A String", # Serialized EventId of the request which produced this response.
+    "visitorId": "A String", # The visitorId identifies the visitor.
     "items": [ # A list of thumbnails.
       { # Internal representation of thumbnails for a YouTube resource.
-        "maxres": { # A thumbnail is an image representing a YouTube resource. # The maximum resolution quality image for this resource.
-          "url": "A String", # The thumbnail image's URL.
+        "medium": { # A thumbnail is an image representing a YouTube resource. # The medium quality image for this resource.
           "height": 42, # (Optional) Height of the thumbnail image.
+          "url": "A String", # The thumbnail image's URL.
           "width": 42, # (Optional) Width of the thumbnail image.
         },
         "high": { # A thumbnail is an image representing a YouTube resource. # The high quality image for this resource.
-          "url": "A String", # The thumbnail image's URL.
           "height": 42, # (Optional) Height of the thumbnail image.
-          "width": 42, # (Optional) Width of the thumbnail image.
-        },
-        "default": { # A thumbnail is an image representing a YouTube resource. # The default image for this resource.
           "url": "A String", # The thumbnail image's URL.
-          "height": 42, # (Optional) Height of the thumbnail image.
           "width": 42, # (Optional) Width of the thumbnail image.
         },
         "standard": { # A thumbnail is an image representing a YouTube resource. # The standard quality image for this resource.
-          "url": "A String", # The thumbnail image's URL.
           "height": 42, # (Optional) Height of the thumbnail image.
+          "url": "A String", # The thumbnail image's URL.
           "width": 42, # (Optional) Width of the thumbnail image.
         },
-        "medium": { # A thumbnail is an image representing a YouTube resource. # The medium quality image for this resource.
-          "url": "A String", # The thumbnail image's URL.
+        "default": { # A thumbnail is an image representing a YouTube resource. # The default image for this resource.
           "height": 42, # (Optional) Height of the thumbnail image.
+          "url": "A String", # The thumbnail image's URL.
+          "width": 42, # (Optional) Width of the thumbnail image.
+        },
+        "maxres": { # A thumbnail is an image representing a YouTube resource. # The maximum resolution quality image for this resource.
+          "height": 42, # (Optional) Height of the thumbnail image.
+          "url": "A String", # The thumbnail image's URL.
           "width": 42, # (Optional) Width of the thumbnail image.
         },
       },
     ],
-    "visitorId": "A String", # The visitorId identifies the visitor.
+    "etag": "A String", # Etag of this resource.
   }</pre>
 </div>