Parses the O*NET database releases archive and returns downloadable text
archives. The release archive states release months, not days, so
release_date uses the first day of each stated month.
Details
Text archives (format = "text") exist for releases 20.1 (October 2015)
onward. Earlier releases (5.0-20.0) are published as legacy ZIPs
(format = "legacy_zip"); onet2r can download them, but their internal
file layouts vary and parsing is verified only for 20.1+. The O*NET
production archive begins at 5.0 (April 2003), the first release of the
Data Collection Program - no survey-based data exists before that.
Examples
if (interactive()) {
onet_releases()
}
