How to update gvm-libs? - end-of-life Scan Engine / Environment (local) - GVM Libaries

Hi everyone,
I need help in updating my OpenVAS gvm-libs from 11.0.1 to 20.8.0…

im running OpenVAS in a Docker-Container from https://hub.docker.com/r/securecompliance/gvm.
In my current Scan-Reports i get this Vulnerability:
“Report outdated / end-of-life Scan Engine / Environment (local)”
It says that my currently installed GVM Libraries (gvm-libs) version is 11.0.1 and that I should update the gvm-libs to the latest available GVM Libraries version 20.8.0.

Can someone help me to update my gvm-libs on my docker container?
I cant find any commands or scripts…

My Specs:

GVM versions

gsad: Greenbone Security Assistant 9.0.1
gvmd: Greenbone Vulnerability Manager 9.0.1
openvas-scanner: OpenVAS 7.0.1
gvm-libs: gvm-libs 11.0.1

Environment

Distributor ID: Ubuntu
Description: Ubuntu 20.04.2 LTS
Release: 20.04

Greetings,
Marc