fix: add RUN for gitlab-runner

.forgejo/workflows/builder.yml

@@ -18,6 +18,7 @@ jobs:
             FROM docker.io/library/node:18-bookworm
             RUN apt update && apt install --yes wget curl jq yq zip xz-utils bzip2 reprepro rsync git openssh-client unzip gnupg2 python3-pip python3-setuptools fakeroot lintian
             ENTRYPOINT ["/bin/bash", "-c"]
+            RUN /bin/bash
           image: git.kabelsalat.ch/s3lph/package-pipeline-builder:latest
           registry: git.kabelsalat.ch
           username: ${{ secrets.REGISTRY_USERNAME }}