build: run docs regen in synth.py (#1059)

diff --git a/docs/dyn/analytics_v3.metadata.columns.html b/docs/dyn/analytics_v3.metadata.columns.html
index 4378700..3bf9fe1 100644
--- a/docs/dyn/analytics_v3.metadata.columns.html
+++ b/docs/dyn/analytics_v3.metadata.columns.html
@@ -97,21 +97,21 @@
   An object of the form:
 
     { # Lists columns (dimensions and metrics) for a particular report type.
-    "totalResults": 42, # Total number of columns returned in the response.
     "kind": "analytics#columns", # Collection type.
+    "totalResults": 42, # Total number of columns returned in the response.
     "attributeNames": [ # List of attributes names returned by columns.
       "A String",
     ],
-    "etag": "A String", # Etag of collection. This etag can be compared with the last response etag to check if response has changed.
     "items": [ # List of columns for a report type.
       { # JSON template for a metadata column.
         "kind": "analytics#column", # Resource type for Analytics column.
+        "id": "A String", # Column id.
         "attributes": { # Map of attribute name and value for this column.
           "a_key": "A String", # The name of the attribute.
         },
-        "id": "A String", # Column id.
       },
     ],
+    "etag": "A String", # Etag of collection. This etag can be compared with the last response etag to check if response has changed.
   }</pre>
 </div>