CeleryExecutor: no way to forward task logs to worker stdout (subprocess_logs_to_stdout hard-coded False)

### Apache Airflow version 3.2.0 (also present on `main`) ### What happened When running the **CeleryExecutor**, task subprocess stdout/stderr is **not** forwarded to the Celery worker's own stdout, so it never reaches a container-level log collector (e.g. Kubernetes/AKS `ContainerLogV2`, Loki, etc.). The **LocalExecutor** and the **KubernetesExecutor** per-task pod both forward task logs to stdout, so migrating a deployment from KubernetesExecutor to CeleryExecutor silently drops task-level logs from any stdout-based collector. Task logs still reach the remote/base task-log handler (files/blob) and the UI — only the container-stdout stream is affected. This is a companion asymmetry to the JSON-rendering gap fixed in #68912 / #68916, but it is a **separate** flag and is **not** addressed by that fix. ### What you think should happen instead The CeleryExecutor worker should have a supported way (config option, ideally `[celery]`/`[logging]`) to also emit task logs to the worker stdout — i.e. parity with LocalExecutor / the Kubernetes pod path — instead of the value being hard-coded per call site. ### Root cause Whether task logs are forwarded to the worker's stdout logger is controlled by the keyword-only `subprocess_logs_to_stdout` argument of `supervise()`, which **defaults to `False`**: - Default `False`: https://github.com/apache/airflow/blob/3.2.0/task-sdk/src/airflow/sdk/execution_time/supervisor.py#L479 and https://github.com/apache/airflow/blob/3.2.0/task-sdk/src/airflow/sdk/execution_time/supervisor.py#L2012 - The stdout logger is only added to the log forwarder's `target_loggers` when the flag is `True`: https://github.com/apache/airflow/blob/3.2.0/task-sdk/src/airflow/sdk/execution_time/supervisor.py#L569-L572 and https://github.com/apache/airflow/blob/3.2.0/task-sdk/src/airflow/sdk/execution_time/supervisor.py#L1505-L1507 The call sites are inconsistent: - **LocalExecutor** passes `subprocess_logs_to_stdout=True`: https://github.com/apache/airflow/blob/3.…