Backfill image dimensions data

[stacimc]

Problem

Depends on #1486

Once we've added image dimensions detection for the providers that don't currently support them, we'll need to backfill the data for previously ingested records. The providers to backfill are:

• NYPL
• Smithsonian
• Walters Art Museum
• Finnish Museums
• Europeana*
• Metropolitan*

* Since Metropolitan and Europeana are dated DAGs, we could potentially rely on their reingestion workflow to backfill the data over time (related: #1501).

Implementation

• 🙋 I would be interested in implementing this feature.

[obulat]

File size and file type can be backfilled together with the image dimensions data. Here's the information on the file size and file type information:

Provider	file type in the script	file size in the script	backfill for file type	backfill for file size
Smithsonian	needs to be added	needs to be added	-	-
Raw Pixel	needs to be added	needs to be added	-	-
Finnish Museums	needs to be added	needs to be added	-	-
NYPL	added in WordPress/openverse-catalog#630	needs to be added	not run yet	-
Phylopic	added in WordPress/openverse-catalog#547	needs to be added	not run yet	-
Metropolitan Museum of Art	added in WordPress/openverse-catalog#568	needs to be added	not run yet	-
Cleveland Museum of Art	added in WordPress/openverse-catalog#537	added in WordPress/openverse-catalog#537	not run yet	not run yet
Museums Victoria	added in WordPress/openverse-catalog#600	needs to be added	not run yet	-
SMK	added in WordPress/openverse-catalog#542	added in WordPress/openverse-catalog#542	not run yet	not run yet
Science Museum	added in WordPress/openverse-catalog#576	needs to be added	not run yet	-
Walters Art Museum	cannot fix due to #1637	-	-	-
Brooklyn Museum	cannot fix due to #1638	-	-	-
Europeana	needs to be added in fixing #1727	-	-	-