CI: cleanup

.github/workflows/main.yml

@@ -54,19 +54,19 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
-      - name: Install Flatpak
+      - name: Install Flatpak and add Flathub
         run: |
           whoami
           uname -a
           sudo apt-get update
           sudo apt-get install -y flatpak
           sudo flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
           sudo flatpak install -y org.freedesktop.appstream.cli
-      - name: Validate
+      - name: List appstream.cli version
         run: |
-          pwd
-          ls
           flatpak run org.freedesktop.appstream.cli --version
+      - name: Validate
+        run: |
           flatpak run org.freedesktop.appstream.cli validate --strict --pedantic --explain io.github.gnu_octave.doctest.metainfo.xml
 
   # Built-in Self Tests for various supported Octave