ops: upload/download docker image

.gitea/workflows/ci.yml

@@ -44,6 +44,14 @@ jobs:
           file: builder.Dockerfile
           tags: cproject-builder:latest
           outputs: type=docker,dest=/tmp/docker/${{ runner.os }}-builder-image.tar
+      -
+        name: Upload docker image
+        if: steps.cache-docker.outputs.cache-hit != 'true'
+        uses: actions/upload-artifact@v3
+        with:
+          name: ${{ runner.os }}-docker-${{ steps.dockerfile-hash.outputs.hash }}
+          path: /tmp/docker/${{ runner.os }}-builder-image.tar
+          retention-days: 3
 
   build-and-test:
     runs-on: ubuntu-latest
@@ -61,12 +69,11 @@ jobs:
         with:
           patterns: builder.Dockerfile
       -
-        name: Restore docker image
-        id: cache-docker
-        uses: actions/cache@v3
+        name: Downlaod docker image
+        uses: actions/download-artifact@v3
         with:
-          path: /tmp/docker
-          key: ${{ runner.os }}-docker-${{ steps.dockerfile-hash.outputs.hash }}
+          name: ${{ runner.os }}-docker-${{ steps.dockerfile-hash.outputs.hash }}
+          path: /tmp/docker/${{ runner.os }}-builder-image.tar
       -
         name: Build library
         uses: https://git.brocklobsta.net/brock/docker-run-action@v4