feat(aiplatform): add enum value MALFORMED_FUNCTION_CALL to `.google.…

…cloud.aiplatform.v1beta1.content.Candidate.FinishReason` (#10400)

- [ ] Regenerate this pull request now.

feat(aiplatform): add text field in Segment
feat(aiplatform): add streamRawPredict rpc to prediction service
feat(aiplatform): add fields grounding_chunks and grounding_supports to GroundingMetadata
docs(aiplatform): A comment for field `name` in message `.google.cloud.aiplatform.v1beta1.cached_content.CachedContent` is changed
docs(aiplatform): A comment for field `distibution` in message `.google.cloud.aiplatform.v1beta1.model_monitoring_stats.ModelMonitoringStatsDataPoint` is changed.
docs(aiplatform): A comment for field `source` in message `.google.cloud.aiplatform.v1beta1.tool.Retrieval` is added.

PiperOrigin-RevId: 643377787

Source-Link: https://togithub.com/googleapis/googleapis/commit/3133550c99ecc489e0ac7725ddddedae41d985c7

Source-Link: https://togithub.com/googleapis/googleapis-gen/commit/34572b578e98b354e7db984e94fe73be13ac9692
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