MFH: r447698

• www/typo3-7: Update from 7.6.20 to 7.6.21
• Changelog: https://typo3.org/news/article/typo3-874-and-7621-released/

PR: 221388
Submitted by: Helmut Ritter <freebsd-ports@charlieroot.de> (maintainer)
Approved by: tz (mentor)
Differential Revision: https://reviews.freebsd.org/D11952

Approved by: ports-secteam (feld)