Regenerate aiplatform client (#7898)

Generated in GitHub action: https://togithub.com/googleapis/googleapis/google-api-php-client-services/actions/workflows/codegen.yaml

Author: yoshi-code-bot

src/Aiplatform/GoogleCloudAiplatformV1PipelineJob.php

@@ -117,7 +117,10 @@ class GoogleCloudAiplatformV1PipelineJob extends \Google\Collection
    */
   public $network;
   /**
-   * The spec of the pipeline.
+   * A compiled definition of a pipeline, represented as a `JSON` object.
+   * Defines the structure of the pipeline, including its components, tasks, and
+   * parameters. This specification is generated by compiling a pipeline
+   * function defined in `Python` using the `Kubeflow Pipelines SDK`.
    *
    * @var array[]
    */
@@ -352,7 +355,10 @@ public function getNetwork()
     return $this->network;
   }
   /**
-   * The spec of the pipeline.
+   * A compiled definition of a pipeline, represented as a `JSON` object.
+   * Defines the structure of the pipeline, including its components, tasks, and
+   * parameters. This specification is generated by compiling a pipeline
+   * function defined in `Python` using the `Kubeflow Pipelines SDK`.
    *
    * @param array[] $pipelineSpec
    */