ci: resume ci on node@14

I am not able to resume node@12, as the nested dependency esm-utils inside xo is using the syntax that node@12 not support.

We can fix it by forcing install esm-utils@4.1.0 but I am not sure if it is what you want.

Checklist

[x] I have ensured my pull request is not behind the main or master branch of the original repository.
[x] I have rebased all commits where necessary so that reviewing this pull request can be done without having to merge it first.
[x] I have written a commit message that passes commitlint linting.
[x] I have ensured that my code changes pass linting tests.
[x] I have ensured that my code changes pass unit tests.
[x] I have described my pull request and the reasons for code changes along with context if necessary.