### 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)

context, inspected_column, metadata_column, inspected_default, metadata_default, rendered_metadata_default
):
    """
    Compare server defaults between ORM and DB .
    return True if the defaults are different, False if not, or None to allow the default implementation
    to compare these defaults
    Comparing server_default is not accurate in MSSQL because the
    inspected_default above != metadata_default, while in Postgres/MySQL they are equal.
    This is an issue with alembic
    In SQLite: task_instance.map_index & task_reschedule.map_index
    are not comparing accurately. Sometimes they are equal, sometimes they are not.
    Alembic warned that this feature has varied accuracy depending on backends.
    See: (https://alembic.sqlalchemy.org/en/latest/api/runtime.html#alembic.runtime.
        environment.EnvironmentContext.configure.params.compare_server_default)
    """
    dialect_name = context.connection.dialect.name
    if dialect_name in ["mssql", "sqlite"]:
        return False
    if (
        dialect_name == "mysql"
        and metadata_column.name == "pool_slots"
        and metadata_column.table.name == "task_instance"
    ):
        
        
        
        
        
        return False