Add `validate-overrides` script to check that the parameter override JSON isn't malformed

[scottstanie]

1. Add a check for malformed JSON.
   Could be a simple as pulling out the logic from Runconfig.to_workflow:

        frame_id = self.input_file_group.frame_id
        # Load any overrides for this frame
        override_params = _parse_algorithm_overrides(overrides_json, frame_id)

        # Override the dict with the new options
        param_dict = _nested_update(param_dict, override_params)
        # but then convert back to ensure all defaults remained in `param_dict`
        param_dict = AlgorithmParameters(**param_dict).model_dump()

it seems harder to really load a runconfig because of the check where we get_burst_ids_for_frame tha would error based on bad input CSLCs

2. Add a notebook to plot which frames have overrides

[scottstanie]

A start to the plotting:

import requests

overrides = requests.get(
    "https://raw.githubusercontent.com/opera-adt/burst_db/refs/heads/main/src/burst_db/data/opera-disp-s1-algorithm-parameters-overrides-2024-10-14.json"
).json()
overrides = {int(k): v for (k, v) in overrides.items()}
df_overrides = pd.DataFrame.from_records(overrides).T

# Load frame data
import opera_utils
import geopandas as gpd
import pandas as pd


gdf_frames = opera_utils.get_frame_geojson(as_geodataframe=True)
gdf_merged = gpd.GeoDataFrame(pd.merge(df_overrides, gdf_frames, left_index=True, right_index=True))
gdf_merged.explore()

[scottstanie]

Unit test added in #213