Pin helm version in circle-ci helm testing workflow. (#1849)
Pin helm version in circle-ci helm testing workflow. (#1849)

Signed-off-by: Cyril Tovena <1f3b43b4f8eb8a957255fd6382cb431f49248e69@gmail.com>
grafana/loki,grafana/loki,grafana/loki,grafana/loki,grafana/loki,grafana/loki