fix: install docker

.forgejo/workflows/build.yaml

@@ -1,4 +1,4 @@
-name: Verifies PR
+name: build image
 on:
   pull_request:
     types:
@@ -17,6 +17,7 @@ jobs:
         uses: actions/setup-node@v3
         with:
           node-version: latest
+      - run: apt-get update && apt-get install -y --no-recommends docker.io
       -
         name: Login to Docker Hub
         uses: docker/login-action@v3