feat(aiplatform): add ValueType.STRUCT to Feature (#10282)

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feat(aiplatform): add encryption_spec to FeatureOnlineStore
feat(aiplatform): add struct_value to FeatureValue
feat(aiplatform): add encryption_spec, service_account, disable_container_logging to DeploymentResourcePool
feat(aiplatform): add model_reference to Dataset
feat(aiplatform): add ChatCompletions to PredictionService
feat(aiplatform): add new GenAiCacheService and CachedContent
feat(aiplatform): add cached_content to GenerationContentRequest
feat(aiplatform): add dataplex_config to MetadataStore
feat(aiplatform): add model_reference to DatasetVersion
feat(aiplatform): add INVALID_SPARSE_DIMENSIONS, INVALID_SPARSE_EMBEDDING, INVALID_EMBEDDING to NearestNeighborSearchOperationMetadata.RecordError
feat(aiplatform): add valid_sparse_record_count, invalid_sparse_record_count to NearestNeighborSearchOperationMetadata.ContentValidationStats
feat(aiplatform): add sparse_embedding to IndexDatapoint
feat(aiplatform): add sparse_vectors_count to IndexStats
feat(aiplatform): add sparse_distance to FindNeighborsResponse.Neighbor
feat(aiplatform): add more fields in FindNeighborsRequest.Query
feat(aiplatform): add progress_percentage to ImportRagFilesOperationMetadata
feat(aiplatform): add UpdateNotebookRuntimeTemplate to NotebookService
feat(aiplatform): add direct_notebook_source to NotebookExecutionJob
feat(aiplatform): add encryption_spec to NotebookRuntimeTemplate
feat(aiplatform): add idle_shutdown_config, encryption_spec, satisfies_pzs, satisfies_pzi to NotebookRuntime
feat(aiplatform): add UpdateReasoningEngine to ReasoningEngineService
fix(aiplatform): An existing field `app_id` is renamed to `engine_id` in message `.google.cloud.aiplatform.v1beta1.RuntimeConfig`
docs(aiplatform): A comment for field `description` in message `.google.cloud.aiplatform.v1beta1.ExtensionManifest` is changed
docs(aiplatform): A comment for field `serving_config_name` in message `.google.cloud.aiplatform.v1beta1.RuntimeConfig` is changed
docs(aiplatform): A comment for field `update_mask` in message `.google.cloud.aiplatform.v1beta1.UpdateExtensionRequest` is changed
docs(aiplatform): A comment for field `feature_vector` in message `.google.cloud.aiplatform.v1beta1.IndexDatapoint` is changed
docs(aiplatform): A comment for field `vectors_count` in message `.google.cloud.aiplatform.v1beta1.IndexStats` is changed
docs(aiplatform): A comment for enum value `EMBEDDING_SIZE_MISMATCH` in enum `RecordErrorType` is changed
docs(aiplatform): A comment for field `exec` in message `.google.cloud.aiplatform.v1beta1.Probe` is changed
docs(aiplatform): A comment for field `create_notebook_execution_job_request` in message `.google.cloud.aiplatform.v1beta1.Schedule` is changed
docs(aiplatform): A comment for field `INVALID_EMBEDDING` in message `NearestNeighborSearchOperationMetadata.RecordError` is changed

PiperOrigin-RevId: 638343512

Source-Link: https://togithub.com/googleapis/googleapis/commit/41b263ff66f8f3e023eab1bbf4888a8c7022a3cd

Source-Link: https://togithub.com/googleapis/googleapis-gen/commit/d6ce0c15dbab77682dedacc306a6b8b3f0f8500f
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiZDZjZTBjMTVkYmFiNzc2ODJkZWRhY2MzMDZhNmI4YjNmMGY4NTAwZiJ9
BEGIN_NESTED_COMMIT
feat(aiplatform): add ValueType.STRUCT to Feature
feat(aiplatform): add encryption_spec to FeatureOnlineStore
feat(aiplatform): add struct_value to FeatureValue
feat(aiplatform): add encryption_spec, service_account, disable_container_logging to DeploymentResourcePool
feat(aiplatform): add model_reference to Dataset
feat(aiplatform): add tool_config to GenerateContentRequest
feat(aiplatform): add dataplex_config to MetadataStore
feat(aiplatform): add model_reference to DatasetVersion
feat(aiplatform): add INVALID_SPARSE_DIMENSIONS, INVALID_SPARSE_EMBEDDING, INVALID_EMBEDDING to NearestNeighborSearchOperationMetadata.RecordError
feat(aiplatform): add valid_sparse_record_count, invalid_sparse_record_count to NearestNeighborSearchOperationMetadata.ContentValidationStats
feat(aiplatform): add sparse_embedding to IndexDatapoint
feat(aiplatform): add sparse_vectors_count to IndexStats
feat(aiplatform): add sparse_distance to FindNeighborsResponse.Neighbor
feat(aiplatform): add more fields in FindNeighborsRequest.Query
feat(aiplatform): add UpdateNotebookRuntimeTemplate to NotebookService
feat(aiplatform): add direct_notebook_source to NotebookExecutionJob
feat(aiplatform): add encryption_spec to NotebookRuntimeTemplate
feat(aiplatform): add idle_shutdown_config, encryption_spec, satisfies_pzs, satisfies_pzi to NotebookRuntime
feat(aiplatform): add RaySpec to PersistentResource
fix(aiplatform): An existing message `Segment` is removed
fix(aiplatform): An existing message `GroundingAttribution` is removed
fix(aiplatform): An existing field `grounding_attributions` is removed from message `.google.cloud.aiplatform.v1beta1.GroundingMetadata`
fix(aiplatform): An existing field `disable_attribution` is removed from message `.google.cloud.aiplatform.v1beta1.GoogleSearchRetrieval`
docs(aiplatform): A comment for field `feature_vector` in message `.google.cloud.aiplatform.v1beta1.IndexDatapoint` is changed
docs(aiplatform): A comment for field `vectors_count` in message `.google.cloud.aiplatform.v1beta1.IndexStats` is changed
docs(aiplatform): A comment for enum value `EMBEDDING_SIZE_MISMATCH` in enum `RecordErrorType` is changed
docs(aiplatform): A comment for field `exec` in message `.google.cloud.aiplatform.v1beta1.Probe` is changed

PiperOrigin-RevId: 638338486

Source-Link: https://togithub.com/googleapis/googleapis/commit/c2a9b99ee50a65c2531a18c18809761f7b9f83b5

Source-Link: https://togithub.com/googleapis/googleapis-gen/commit/c4b0bd686dd63d5a38dfb2246d180c21159776a8
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiYzRiMGJkNjg2ZGQ2M2Q1YTM4ZGZiMjI0NmQxODBjMjExNTk3NzZhOCJ9
END_NESTED_COMMIT