feat(bigquery): update the api

#### bigquery:v2

The following keys were added:
- schemas.JobConfigurationQuery.properties.createSession (Total Keys: 1)
- schemas.JobStatistics.properties.sessionInfoTemplate (Total Keys: 1)
- schemas.Model.properties.bestTrialId (Total Keys: 2)
- schemas.QueryRequest.properties.createSession (Total Keys: 1)
- schemas.QueryResponse.properties.sessionInfoTemplate (Total Keys: 1)
- schemas.Routine.properties.returnTableType (Total Keys: 1)
- schemas.SessionInfo (Total Keys: 3)
- schemas.StandardSqlTableType (Total Keys: 4)
- schemas.TableFieldSchema.properties.maxLength (Total Keys: 2)
- schemas.TableFieldSchema.properties.precision (Total Keys: 2)
- schemas.TableFieldSchema.properties.scale (Total Keys: 2)

Author: yoshi-automation