update Ubuntu image

ubuntu-eb-base/Dockerfile

 ARG IMG_REGISTRY=docker.io
 ARG IMG_ORG=library
 ARG IMG_NAME=ubuntu
-ARG IMG_TAG=hirsute
+ARG IMG_TAG=22.04
 # allow CI/CD to change all of the above
 FROM ${IMG_REGISTRY}/${IMG_ORG}/${IMG_NAME}:${IMG_TAG}
 # set default easybuild version
-ARG EB_VER=4.4.0
-ENV LMOD_VER 8.4
+ARG EB_VER=4.5.1
+ENV LMOD_VER 8.6
 LABEL easybuild_version=${EB_VER}
 # install required packages
 # RUN yum update -y

ubuntu-eb-test/Dockerfile

-ARG IMG_REGISTRY=gitlab.version.fz-juelich.de:5555
+ARG IMG_REGISTRY=gitlab.jsc.fz-juelich.de:5555
 ARG IMG_ORG=easybuild-docker
 ARG IMG_REPO=easybuild-docker
 ARG IMG_NAME=ubuntu-eb-base
@@ -11,7 +11,7 @@ ADD EasyBuild-develop.eb /home/easybuild/EasyBuild-develop.eb
 USER root
 RUN pip3 install pep8
 # set default easybuild version
-ARG EB_VER=4.4.0
+ARG EB_VER=4.5.1
 LABEL easybuild_version=${EB_VER}
 # switch to 'easybuild' user
 USER easybuild