Ignore column with typo on NamespaceDetails

What does this MR do and why?

• This column name has a typo and can't be renamed by our usual process since rename_column_concurrently requires the table have an ID column, which namespace_details does not.

• Step M1 of our 3 step process https://docs.gitlab.com/ee/development/database/avoiding_downtime_in_migrations.html#dropping-columns

• refs: !100311 (closed) (comment 1126459417)

• refs: #367549

How to set up and validate locally

• No setup necessary
• Column is also unused anywhere in the code so far

MR acceptance checklist

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• I have evaluated the MR acceptance checklist for this MR.