Added missing file types in file_types enum and removed broken exactlyOneOf blocks in google_data_loss_prevention_job_trigger resource

[modular-magician]

Added missing file types in inspect_job.storage_config.cloud_storage_options.file_types enum and removed dummy exactlyOneOf blocks in the google_data_loss_prevention_job_trigger resource

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Release Note Template for Downstream PRs (will be copied)

dlp: added missing file types `POWERPOINT` and `EXCEL` in `inspect_job.storage_config.cloud_storage_options.file_types` enum to `google_data_loss_prevention_job_trigger` resource

Derived from GoogleCloudPlatform/magic-modules#8100