feat: Upgrade helm (#50)

* Helm v2.17.0
* Helm v3.4.2

Dockerfile

@@ -2,8 +2,8 @@ FROM alpine:3.10.2
 
 ENV BASE_URL="https://get.helm.sh"
 
-ENV HELM_2_FILE="helm-v2.16.1-linux-amd64.tar.gz"
-ENV HELM_3_FILE="helm-v3.0.0-linux-amd64.tar.gz"
+ENV HELM_2_FILE="helm-v2.17.0-linux-amd64.tar.gz"
+ENV HELM_3_FILE="helm-v3.4.2-linux-amd64.tar.gz"
 
 RUN apk add --no-cache ca-certificates \
     --repository http://dl-3.alpinelinux.org/alpine/edge/community/ \