Fix mapserver not being built with FCGI support

ci/lint_helm.sh

-#!/usr/bin/env bash
-# Usage: lint_helm.sh
-echo "Linting helm chart with no additional values"
-set -e
-helm lint geosphere-mapserver
-# need to copy yaml files here so helm docker alias can find them (in PWD)
-cp ../ci/*.yaml .
-for fn in test-*.yaml; do
-    echo "Linting helm chart with ${fn}"
-    helm lint -f ${fn} geosphere-mapserver
-done