Add helm lint to CI pipeline

.gitlab-ci.yml

@@ -15,6 +15,15 @@ stages:
   variables:
     DOCKER_TLS_CERTDIR: "/certs"
 
+# Theodolite Helm Chart
+
+lint-helm:
+  stage: check
+  image: alpine/helm:3.5.2
+  tags:
+    - exec-docker
+  script: helm lint execution/helm/theodolite-chart/
+
 
 # Theodolite Benchmarks