Add GitLab scanning, linting

.gitlab-ci.yml

+before_script:
+  - |
+    apt-get update
+    apt-get -y --no-install-recommends install jq
+    apt-get clean
+    rm -rf /var/lib/apt/lists/*
+
+lint:
+  stage: test
+  image: containers.ethitter.com:443/docker/images/debian:bullseye
+  script:
+    - sh ./.ci-scripts/lint.sh "$(<./files/default.yml)"