chore(ci): install via pacman

Author: pbrisbin

.github/workflows/ci.yml

@@ -16,7 +16,9 @@ jobs:
 
     steps:
       - uses: actions/checkout@v6
-      - uses: actions/setup-python@v5
-      - run: pip install cram
-      - uses: extractions/setup-just@v2
+      - name: System dependencies
+        run: |
+          pacman -S --needed --noconfirm \
+            just \
+            python-cram
       - run: just test