Update node.js v11 to v11.10.0, and Alpine to v3.9

- https://github.com/nodejs/node/releases/tag/v11.10.0
- https://github.com/nodejs/node/blob/master/doc/changelogs/CHANGELOG_V11.md#11.10.0

cc #988

Author: PeterDaveHello

11/alpine/Dockerfile

@@ -1,6 +1,6 @@
-FROM alpine:3.8
+FROM alpine:3.9
 
-ENV NODE_VERSION 11.9.0
+ENV NODE_VERSION 11.10.0
 
 RUN addgroup -g 1000 node \
     && adduser -u 1000 -G node -s /bin/sh -D node \

11/stretch-slim/Dockerfile

@@ -3,7 +3,7 @@ FROM debian:stretch-slim
 RUN groupadd --gid 1000 node \
   && useradd --uid 1000 --gid node --shell /bin/bash --create-home node
 
-ENV NODE_VERSION 11.9.0
+ENV NODE_VERSION 11.10.0
 
 RUN buildDeps='xz-utils' \
     && ARCH= && dpkgArch="$(dpkg --print-architecture)" \

11/stretch/Dockerfile

@@ -3,7 +3,7 @@ FROM buildpack-deps:stretch
 RUN groupadd --gid 1000 node \
   && useradd --uid 1000 --gid node --shell /bin/bash --create-home node
 
-ENV NODE_VERSION 11.9.0
+ENV NODE_VERSION 11.10.0
 
 RUN ARCH= && dpkgArch="$(dpkg --print-architecture)" \
   && case "${dpkgArch##*-}" in \