pinned zona to stable ref

.build.yml

@@ -1,15 +1,15 @@
 image: alpine/edge
 oauth: pages.sr.ht/PAGES:RW
 packages:
-    - hut
-    - uv
+  - hut
+  - uv
 environment:
   site: ficd.ca
 tasks:
   - build: |
       if [ "$GIT_REF" = "refs/heads/main" ]; then
         cd ficd-zona
-        uv run --with 'git+https://git.sr.ht/~ficd/zona' zona build
+        uv run --with 'git+https://git.sr.ht/~ficd/zona@c875adb18c281a7c28018d82bdf2cf9ac3b2433c' zona build
       else
         echo "Skipping build: not on main"
       fi
@@ -28,4 +28,3 @@ tasks:
       else
         echo "Skipping upload: not on main"
       fi
-