chore(spanner): update the api

#### spanner:v1

The following keys were added:
- resources.projects.resources.instances.methods.list.parameters.instanceDeadline (Total Keys: 3)
- resources.projects.resources.instances.resources.backups.methods.create.parameters.encryptionConfig.encryptionType (Total Keys: 2)
- resources.projects.resources.instances.resources.backups.methods.create.parameters.encryptionConfig.kmsKeyName (Total Keys: 2)
- schemas.Backup.properties.encryptionInfo (Total Keys: 2)
- schemas.Backup.properties.versionTime (Total Keys: 2)
- schemas.BackupInfo.properties.versionTime (Total Keys: 2)
- schemas.CommitRequest.properties.returnCommitStats (Total Keys: 1)
- schemas.CommitResponse.properties.commitStats (Total Keys: 1)
- schemas.CommitStats (Total Keys: 4)
- schemas.CreateDatabaseRequest.properties.encryptionConfig (Total Keys: 1)
- schemas.Database.properties.earliestVersionTime (Total Keys: 3)
- schemas.Database.properties.encryptionConfig (Total Keys: 2)
- schemas.Database.properties.encryptionInfo (Total Keys: 3)
- schemas.Database.properties.versionRetentionPeriod (Total Keys: 2)
- schemas.EncryptionConfig (Total Keys: 3)
- schemas.EncryptionInfo (Total Keys: 8)
- schemas.ListInstancesResponse.properties.unreachable (Total Keys: 2)
- schemas.RestoreDatabaseEncryptionConfig (Total Keys: 4)
- schemas.RestoreDatabaseRequest.properties.encryptionConfig (Total Keys: 1)
- schemas.UpdateDatabaseDdlMetadata.properties.throttled (Total Keys: 2)

Author: yoshi-automation