fix(checkDepEnvs): always install root pkg

[larsgw]

Always 'install' the root package, instead of ignoring it when --only=dev is passed.

See https://npm.community/t/3068

[heidemn]

Just encountered this bug in the wild... Why is nobody merging this PR?

tail -1 /etc/lsb-release && node --version && npm --version && npm ci --only=development
DISTRIB_DESCRIPTION="Ubuntu 18.04.1 LTS"
v10.15.1
6.7.0
added 0 packages in 0.028s

On the other side, NODE_ENV=development seems to be ignored, and installs all dependencies.
Both NODE_ENV=production and --only=production work.

Same behavior using Docker image "node:10-alpine".

The docs for "npm ci" neither mention "--only", nor NODE_ENV. So maybe it works as intended ;-)

[jbinard]

I'm also facing this issue. Can somebody approve this merge request to fix this annoying issue ?

Thanks

[JeremyCraigMartinez]

Can we please get this merged? Does anyone have a work around for installing devDependencies when your NODE_ENV=production in the meantime? Guessing NODE_ENV=local npm ci will suffice