KDE: Update KDE Plasma Desktop to 5.27.0 distinfo fix

• the tar balls were respun prior to release, but missed:
  • http://embra.edinburghlinux.co.uk/~jr/tmp/plasma-desktop-5.27.0-changes_report.html
  • http://embra.edinburghlinux.co.uk/~jr/tmp/plasma-workspace-5.27.0-changes_report.html

Reported by: vvd