adding zlib-dev

.gitlab-ci.yml

@@ -17,7 +17,7 @@ validate:
   stage: ssa-validate
   image: docker.repo.splunkdev.net/ci-cd/ci-container:alpine-3.11
   before_script:
-    - apk add --update python3 python3-dev py-pip build-base openjdk8-jre && pip install virtualenv && rm -rf /var/cache/apk/*
+    - apk add --update python3 python3-dev py-pip build-base openjdk8-jre zlib-dev && pip install virtualenv && rm -rf /var/cache/apk/*
     - python3 -m pip install -U --force-reinstall pip && pip3 install -r requirements.txt
   script:
     - python3 bin/ssa_validate.py --skip-error detections/*/*