Fix a Spec

[kyleVsteger]

While working with this API, I noticed that this spec (and likely others) are incorrect. It returns a list of GoogleApi.Firestore.V1.Model.RunQueryResponse structs.

The raw response from GoogleApi.Firestore.V1.Api.Projects.firestore_projects_databases_documents_run_query is

{:ok,
 [
   %GoogleApi.Firestore.V1.Model.RunQueryResponse{
     document: %GoogleApi.Firestore.V1.Model.Document{
       createTime: ~U[2020-09-02 23:42:57.807167Z],
       fields: %{
         "UID" => %GoogleApi.Firestore.V1.Model.Value{
           arrayValue: nil,
           booleanValue: nil,
           bytesValue: nil,
           doubleValue: nil,
           geoPointValue: nil,
           integerValue: nil,
           mapValue: nil,
           nullValue: nil,
           referenceValue: nil,
           stringValue: "REDACTED",
           timestampValue: nil
         },
         "savedSearches" => %GoogleApi.Firestore.V1.Model.Value{
           arrayValue: %GoogleApi.Firestore.V1.Model.ArrayValue{values: nil},
           booleanValue: nil,
           bytesValue: nil,
           doubleValue: nil,
           geoPointValue: nil,
           integerValue: nil,
           mapValue: nil,
           nullValue: nil,
           referenceValue: nil,
           stringValue: nil,
           timestampValue: nil
         }
       },
       name: "REDACTED",
       updateTime: ~U[2020-10-19 20:17:43.477743Z]
     },
     readTime: ~U[2021-06-02 19:04:32.970584Z],
     skippedResults: nil,
     transaction: nil
   }
 ]}

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