Merge pull request #44 from overleaf/update-node-10.21.0

Update node to 10.21.0

services/chat/.nvmrc

@@ -1 +1 @@
-10.19.0
+10.21.0

services/chat/Dockerfile

@@ -3,7 +3,7 @@
 # https://github.com/sharelatex/sharelatex-dev-environment
 # Version: 1.4.0
 
-FROM node:10.19.0 as base
+FROM node:10.21.0 as base
 
 WORKDIR /app
 

services/chat/docker-compose.yml

@@ -7,7 +7,7 @@ version: "2.3"
 
 services:
   test_unit:
-    image: node:10.19.0
+    image: node:10.21.0
     volumes:
       - .:/app
     working_dir: /app
@@ -18,7 +18,7 @@ services:
     user: node
 
   test_acceptance:
-    image: node:10.19.0
+    image: node:10.21.0
     volumes:
       - .:/app
     working_dir: /app