### Description

The current length limit for the `login` parameter in an HTTP connection is 500 characters. It'd be nice if this was 5000 characters like the `password` parameter.

### Use case/motivation

We've run into an issue with an API we need to integrate with. It uses basic HTTP authentication, and both username and password are about 900 characters long each. We don't have any control over this API, so we cannot change the authentication method, nor the length of these usernames and passwords.

### Related issues

_No response_

### Are you willing to submit a PR?

- [X] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

"""Synchronize log template configs with table.
    This checks if the last row fully matches the current config values, and
    insert a new row if not.
    """
    
    
    
    from airflow.models.tasklog import LogTemplate
    metadata = reflect_tables([LogTemplate], session)
    log_template_table: Table | None = metadata.tables.get(LogTemplate.__tablename__)
    if log_template_table is None:
        log.info("Log template table does not exist (added in 2.3.0); skipping log template sync.")
        return
    filename = conf.get("logging", "log_filename_template")
    elasticsearch_id = conf.get("elasticsearch", "log_id_template")
    stored = session.execute(
        select(
            log_template_table.c.filename,
            log_template_table.c.elasticsearch_id,
        ).order_by(log_template_table.c.id.desc()),
    ).first()
    
    
    if not stored:
        is_default_log_id = elasticsearch_id == conf.get_default_value("elasticsearch", "log_id_template")
        is_default_filename = filename == conf.get_default_value("logging", "log_filename_template")
        if is_default_log_id and is_default_filename:
            session.add(
                LogTemplate(
                    filename="{{ ti.dag_id }}/{{ ti.task_id }}/{{ ts }}/{{ try_number }}.log",