IntegrityError: insert or update on table "contentcuration_file" violates foreign key constraint "D3740c2e1920a8e...

[sentry-io]

We should validate file formats before attempting to create a file object with them in the upload_url endpoint.

Sentry Issue: STUDIO-F8K

ForeignKeyViolation: insert or update on table "contentcuration_file" violates foreign key constraint "D3740c2e1920a8e54f999f6f101ff7e7"
DETAIL:  Key (file_format_id)=(pptx) is not present in table "contentcuration_fileformat".

  File "django/db/backends/utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "newrelic/hooks/database_psycopg2.py", line 65, in execute
    **kwargs)
  File "newrelic/hooks/database_dbapi2.py", line 39, in execute
    *args, **kwargs)
  File "django_prometheus/db/common.py", line 71, in execute
    return super().execute(*args, **kwargs)

IntegrityError: insert or update on table "contentcuration_file" violates foreign key constraint "D3740c2e1920a8e54f999f6f101ff7e7"
DETAIL:  Key (file_format_id)=(pptx) is not present in table "contentcuration_fileformat".

(24 additional frame(s) were not displayed)
...
  File "django/db/utils.py", line 90, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "django/db/backends/utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "newrelic/hooks/database_psycopg2.py", line 65, in execute
    **kwargs)
  File "newrelic/hooks/database_dbapi2.py", line 39, in execute
    *args, **kwargs)
  File "django_prometheus/db/common.py", line 71, in execute
    return super().execute(*args, **kwargs)

[bjester]

@ozer550 Will take this one, but I'm unable to assign it until he's added to the org