Parse the roller totalbestand gzipped JSON into a flat tibble
Source:R/download.R
parse_roles_bulk.RdThe /roller/totalbestand endpoint returns a gzipped JSON array where
each element is an entity with nested rollegrupper/roller structure,
identical to /enheter/{orgnr}/roller. This function reads the full
file, flattens all entities into one tibble matching brreg_roles()
output.