try newer singularity container

.github/workflows/apptainer.yml

@@ -9,8 +9,8 @@ jobs:
   build:
     runs-on: ubuntu-20.04
     container:
-      image: sysmso/singularity-ci
-      options: --privileged
+      image: quay.io/singularity/singularity:v3.9.4
+      options: --privileged --entrypoint /bin/sh
     steps:
     - name: check out code
       uses: actions/checkout@v1

cobrexa.def

-BootStrap: docker
-From: julia
+BootStrap: library
+From: cylon-x/lcsb-biocore/julia-base:latest
 
 %setup
     export GIT_WORK_TREE="${SINGULARITY_ROOTFS}/project/"