Add maintained gridcraft Helm chart

scripts/chart-version.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+set -eu
+
+description=$(git describe --tags --long --match 'v[0-9]*')
+version=${description#v}
+case "$version" in
+  *-0-g*) version=${version%%-0-g*} ;;
+esac
+printf '%s\n' "$version"