feat: define CI_BUILDS_DIR predefined variable

[ANGkeith]

No description provided.

[ottok]

Should the git commit message explain why you suggest this change?

I have seen issues with the path but this commit does not convince why defining it like this is the best solution.

[ANGkeith]

Should the git commit message explain why you suggest this change?

We're updating the predefined variable on a best-effort basis, mostly mirroring GitLab's implementation (GitLab Docs). There may not be much to explain beyond that.

but this commit does not convince why defining it like this is the best solution.

yeah, i don't think this is the best solution, we probably need to update
https://github.com/firecow/gitlab-ci-local/blob/master/src/job.ts#L22 accordingly and update CI_BUILDS_DIR -> /builds

[ottok]

In #1473 I noticed that one needs to pass --variable CI_BUILDS_DIR=/gcl-builds to the command. This PR is likely to fix that, not matter what path you end up choosing, as having that variable defined will make the paths work.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

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