chore: upgrade npm version to fix npm publishing

What does this MR do and why?

npm publishing was still failing becaue the updated npm version wasn't being picked up.

I've also moved git tag push to after the npm release, so that if the npm publishing fails we don't tag the release unnecessarily

How to set up and validate locally

Job passing: https://gitlab.com/gitlab-org/glql/-/jobs/11997588892

Release: https://www.npmjs.com/package/@gitlab/query-language-rust?activeTab=versions

Git tag: https://gitlab.com/gitlab-org/glql/-/tags

Ruby gem MR update: !308 (merged)