Revert "Use official podman images"

This reverts commit d66609a954.

.forgejo/workflows/build-image.yml

@@ -4,12 +4,18 @@ jobs:
   build-image:
     runs-on: docker
     container:
-      image: quay.io/podman/stable
+      image: node:18-alpine
+      volumes:
+        - /var/lib/containers
     steps:
       - name: Install packages
         run: |
-          dnf -y module install nodejs:18/common
-          dnf -y install git
+          apk add git podman
+
+      - name: Fixup subuid/subgid
+        run: |
+          echo 'root:1:999' > /etc/subuid
+          echo 'root:1:999' > /etc/subgid
 
       - name: Setup podman
         run: |