chore(spanner): update the api

Author: yoshi-automation

docs/dyn/spanner_v1.projects.instanceConfigs.html

@@ -108,7 +108,7 @@ <h3>Method Details</h3>
 
     { # A possible configuration for a Cloud Spanner instance. Configurations define the geographic placement of nodes and their replication.
   &quot;displayName&quot;: &quot;A String&quot;, # The name of this instance configuration as it appears in UIs.
-  &quot;leaderOptions&quot;: [ # Allowed values of the “default_leader” schema option for databases in instances that use this instance configuration.
+  &quot;leaderOptions&quot;: [ # Allowed values of the &quot;default_leader&quot; schema option for databases in instances that use this instance configuration.
     &quot;A String&quot;,
   ],
   &quot;name&quot;: &quot;A String&quot;, # A unique identifier for the instance configuration. Values are of the form `projects//instanceConfigs/a-z*`.
@@ -142,7 +142,7 @@ <h3>Method Details</h3>
   &quot;instanceConfigs&quot;: [ # The list of requested instance configurations.
     { # A possible configuration for a Cloud Spanner instance. Configurations define the geographic placement of nodes and their replication.
       &quot;displayName&quot;: &quot;A String&quot;, # The name of this instance configuration as it appears in UIs.
-      &quot;leaderOptions&quot;: [ # Allowed values of the “default_leader” schema option for databases in instances that use this instance configuration.
+      &quot;leaderOptions&quot;: [ # Allowed values of the &quot;default_leader&quot; schema option for databases in instances that use this instance configuration.
         &quot;A String&quot;,
       ],
       &quot;name&quot;: &quot;A String&quot;, # A unique identifier for the instance configuration. Values are of the form `projects//instanceConfigs/a-z*`.