Add node 8.13.0, remove node 8.11.4
Add node 8.13.0, remove node 8.11.4

for stack(s) cflinuxfs2, cflinuxfs3 [#162096699]

cloudfoundry/nodejs-buildpack,cloudfoundry/nodejs-buildpack,cloudfoundry/nodejs-buildpack,cloudfoundry/nodejs-buildpack