Is your feature request related to a problem? Please describe.

See: https://cloud.google.com/bigquery/docs/reference/rest/v2/Job#performanceinsights
Looking to be able to get performance insights for a Job

Describe the solution you'd like

Add performance insights to the bigquery SDK.

Describe alternatives you've considered

N/A

Additional context

PR here: feat(bigquery): add performance insights #12101