fix: ignored alloc keys does not drop pvs and lbAllocations

[ricjsan]

Generated parquet still includes pvcs.

Digging through the code I could see that ignored_alloc_keys is not correctly initialized since the array is never retrieved from the keys property.

ignore_alloc_keys.json:

{
    "keys": ["pvs", "lbAllocations"]
}

opencost_parquet_exporter.py:

def main():
    ...
    print("Load allocation keys to ignore")
    ignore_alloc_keys = load_config_file(
        file_path=f'{os.path.dirname(os.path.abspath(__file__))}/ignore_alloc_keys.json')

    ...
    print("Processing the data")
    processed_data = process_result(
        result=result,
        ignored_alloc_keys=ignore_alloc_keys,
        rename_cols=rename_cols,
        data_types=data_types)
    ...

def process_result(result, ignored_alloc_keys, rename_cols, data_types):
    """
    Process raw results from the OpenCost API data request.
    Parameters:
    - result (dict): Raw response data from the OpenCost API.
    - ignored_alloc_keys (dict): Allocation keys to ignore
    - rename_cols (dict): Key-value pairs for coloumns to rename
    - data_types (dict): Data types for properties of OpenCost response 

    Returns:
    - DataFrame or None: Processed data as a Pandas DataFrame, or None if an error occurs.
    """
    for split in result:
        # Remove entry for unmounted pv's .
        # this break the table schema in athena
        split.pop('__unmounted__/__unmounted__/__unmounted__', None)
    for split in result:
        for alloc_name in split.keys():
            for ignored_key in ignored_alloc_keys:
                split[alloc_name].pop(ignored_key, None)
    ...