ci: also verify that installation works on Mariner and Arch Linux

These currently work, too, and we probably want to keep it that way.

Signed-off-by: Johannes Schindelin <[email protected]>

.github/workflows/validate-install-from-source.yml

@@ -27,13 +27,18 @@ jobs:
         - image: opensuse/leap
         - image: opensuse/tumbleweed
         - image: registry.suse.com/suse/sle15:15.4.27.11.31
+        - image: archlinux
+        - image: mcr.microsoft.com/cbl-mariner/base/core:2.0
     container: ${{matrix.vector.image}}
     steps:
       - run: |
           if [[ ${{matrix.vector.image}} == *"suse"* ]]; then
             zypper -n install tar gzip
           elif [[ ${{matrix.vector.image}} == *"centos"* ]]; then
             dnf install which -y
+          elif [[ ${{matrix.vector.image}} == *"mariner"* ]]; then
+            GNUPGHOME=/root/.gnupg tdnf update -y &&
+            GNUPGHOME=/root/.gnupg tdnf install tar -y # needed for `actions/checkout`
           fi
 
       - uses: actions/checkout@v4