Add node 10.18.1, remove node 10.18.0
Add node 10.18.1, remove node 10.18.0

for stack(s) cflinuxfs3 [#170636221]

cloudfoundry/ruby-buildpack,cloudfoundry/ruby-buildpack,cloudfoundry/ruby-buildpack,cloudfoundry/ruby-buildpack,cloudfoundry/ruby-buildpack