There is a better maintained script in node-code-utils which properly
bumps the version numbers for each of the LTS branches, which is more
useful. Node collaborators also use this script, so it will make
backports more uniform.

Change-Id: If5449b8a801c4bd14f39d59b7af52cc959989be7
Reviewed-on: https://chromium-review.googlesource.com/c/1328927Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57393}