Draft: Update helm version in the gitlab operator build image to 3.13.1

What does this MR do and why?

After adding the vcluster binary to the gitlab-operator build base image, turns out it doesn't work well with the current helm version 3.5 in the same image (despite the docs specifying helm v3 is sufficient). The problem seems to be in with the vcluster helm chart and is similar to this issue.

So this MR updates the helm version. Officially it is not possible to match helm version with all the k8s versions we currently test the operator with (1.22, 1.25, 1.26). Since we cannot match the 1.22 version, and in the interest of supporting future k8s versions and assuming backwards compat > forwards compat, this MR updates helm to 3.13.1 (the latest at the time of writing).

Checklist

• (If applicable) Add patches if required for upgrading Ruby version in https://gitlab.com/gitlab-org/gitlab-build-images/-/tree/master/patches/ruby.