Merge pull request #175 from overleaf/jpa-bump-dev-env

[misc] bump the dev-env to 3.3.1

services/real-time/.gitignore

@@ -1,2 +1,5 @@
 node_modules
 forever
+
+# managed by dev-environment$ bin/update_build_scripts
+.npmrc

services/real-time/.npmrc

@@ -1,2 +0,0 @@
-# block local, outside docker invocations of $ npm install
-dry-run=true

services/real-time/buildscript.txt

@@ -5,4 +5,4 @@ real-time
 --env-pass-through=
 --node-version=10.21.0
 --public-repo=True
---script-version=3.3.0
+--script-version=3.3.1