gnucash maint: L10N:de: Update translator-credits

[Frank H.Ellenberger]

Updated	 via  https://github.com/Gnucash/gnucash/commit/440274c4 (commit)
	from  https://github.com/Gnucash/gnucash/commit/1dd426e3 (commit)



commit 440274c44872dca032c2b3829a696b300ef7c0b1
Author: Frank H. Ellenberger <frank.h.ellenberger at gmail.com>
Date:   Mon Mar 22 16:17:48 2021 +0100

    L10N:de: Update translator-credits



Summary of changes:
 po/de.po | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)