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**Description**

DatabricksRunNowOperator is missing the option to take in key word arguement _jar_params_ , it already can take the other ones notebook_params,python_params,spark_submit_params. https://docs.databricks.com/dev-tools/api/latest/jobs.html#run-now


**Use case / motivation**

Provide parity with the other options

airflow/providers/databricks/operators/databricks.py
"""
    Coerces content or all values of content if it is a dict to a string. The
    function will throw if content contains non-string or non-numeric types.
    The reason why we have this function is because the ``self.json`` field must be a
    dict with only string values. This is because ``render_template`` will fail
    for numerical values.
    """
    coerce = _deep_string_coerce
    if isinstance(content, str):
        return content
    elif isinstance(
        content,
        (
            int,
            float,
        ),
    ):
        
        return str(content)
    elif isinstance(content, (list, tuple)):
        return [coerce(e, f'{json_path}[{i}]') for i, e in enumerate(content)]
    elif isinstance(content, dict):
        return {k: coerce(v, f'{json_path}[{k}]') for k, v in list(content.items())}
    else:
        param_type = type(content)
        msg = f'Type {param_type} used for parameter {json_path} is not a number or a string'
        raise AirflowException(msg)
def _handle_databricks_operator_execution(operator, hook, log, context) -> None: