Add new certificate request for nextledger
NextLedger is a lightweight bookkeeping app for Nextcloud with individual invoices and offers, designed for German accounting requirements such as the small business regulation (Kleinunternehmerregelung) and profit-and-loss reporting (EÜR). It focuses on essential accounting features.
Github-Repo: https://github.com/holger-dev/nextledger
Signed-off-by: Holger Heidkamp <holger@heidkamp.dev>