Add `backoff` to Stocksnap DAG for 5XX errors

[AetherUnbound]

Airflow log link

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https://airflow.openverse.org/dags/stocksnap_workflow/grid?dag_run_id=manual__2024-09-05T18%3A39%3A42%2B00%3A00&task_id=ingest_data.pull_image_data&base_date=2024-09-05T18%3A39%3A42%2B0000&tab=logs

Description

It looks like we're starting to encounter ephemeral 5XX errors with certain Stocksnap errors (separate from #4101). We should add a backoff.on_exception wrapper to the _get_filesize function of the ingestion class so these errors can be retried:

https://github.com/WordPress/openverse/blob/7f4fb7c91363747505d72a63dc7509617d16acfc/catalog/dags/providers/provider_api_scripts/stocksnap.py#L160

This can be done using a decorator like Freesound:

https://github.com/WordPress/openverse/blob/05f8c55df108e9af237bde8d4b8e2834fe71f89f/catalog/dags/providers/provider_api_scripts/freesound.py#L182

Although we'd want the check to look like the global one for Science Museum (see #4715)

https://github.com/WordPress/openverse/blob/81d8da840a732073af261c30924e524459d97370/catalog/dags/providers/provider_api_scripts/science_museum.py#L50-L59

Reproduction

Since these are temporal issues, I wasn't able to reproduce the 502 in the logs

DAG status

I've left this enabled, though I will add a silenced alert clause for this linking to this issue.

[MarleaM]

@AetherUnbound I'd love to work on this issue!

[AetherUnbound]

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