Add dependencies for uucore to coverage build

.devcontainer/Dockerfile

@@ -17,6 +17,7 @@ RUN apt-get update \
        libcap-dev \
        libexpect-perl \
        libselinux1-dev \
+       libsystemd-dev \
        python3-pyinotify \
        quilt \
        texinfo \

.github/workflows/CICD.yml

@@ -1099,7 +1099,9 @@ jobs:
 
         case '${{ matrix.job.os }}' in
           ubuntu-latest)
-            sudo apt-get -y update ; sudo apt-get -y install libselinux1-dev
+            # selinux and systemd headers needed to build tests
+            sudo apt-get -y update
+            sudo apt-get -y install libselinux1-dev libsystemd-dev
             # pinky is a tool to show logged-in users from utmp, and gecos fields from /etc/passwd.
             # In GitHub Action *nix VMs, no accounts log in, even the "runner" account that runs the commands, and "system boot" entry is missing.
             # The account also has empty gecos fields.