feat: Add a new field replication_status to `.google.cloud.bigquery…

….reservation.v1.Reservation` to provide visibility into errors that could arise during Disaster Recovery(DR) replication

feat: Add the CONTINUOUS Job type to `.google.cloud.bigquery.reservation.v1.Assignment.JobType` for continuous SQL jobs
feat: Add a new field `enable_gemini_in_bigquery` to `.google.cloud.bigquery.reservation.v1.Assignment` that indicates if "Gemini in Bigquery"(https://cloud.google.com/gemini/docs/bigquery/overview) features are enabled for the reservation assignment
docs: Update the `google.api.field_behavior` for the `.google.cloud.bigquery.reservation.v1.Reservation.primary_location` and `.google.cloud.bigquery.reservation.v1.Reservation.original_primary_location` fields to clarify that they are `OUTPUT_ONLY`
docs: Remove the section about `EDITION_UNSPECIFIED` in the comment for `slot_capacity` in `.google.cloud.bigquery.reservation.v1.Reservation` to clarify that

PiperOrigin-RevId: 731341086

Source-Link: googleapis/googleapis@f62aabb

Source-Link: googleapis/googleapis-gen@b97eaf5
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