Add missing script

Signed-off-by: Jesús Benito Calzada <bjesus@vmware.com>

Author: Jesús Benito Calzada

.github/workflows/kubeapps-general.yaml

@@ -258,6 +258,7 @@ jobs:
       - name: "Install helm (minimum and stable)"
         run: |
           set -eu
+          source ./script/lib/libcitools.sh
           installHelm ${HELM_VERSION_MIN}
           installHelm ${HELM_VERSION_STABLE} helm-stable
       - name: Run chart template test