internal/config/config.go: use DefaultVersion instead of config.Version2

[estroz]

So Config.Version does not also need to be updated when DefaultVersion is changed in the future.

[estroz]

/cc @Adirio

[camilamacedo86]

Make sense 👍

[camilamacedo86]

/lgtm cancel
/approve cancel

[camilamacedo86]

HI @estroz
It is just a replacement for the constant. (too small) Should not break the CI.
I will be looking at it.

[camilamacedo86]

Confirmed that it is a Trevi's incident. See: https://travis-ci.org/github/kubernetes-sigs/kubebuilder/builds/665054120?utm_source=github_status&utm_medium=notification

Also, check it locally and all worked fine as expected since it is just a small change to use the var instead of.

/lgtm
/approve

When the incident be solved jut re-trigger the Travis job and then, it will be merged.

[k8s-ci-robot]

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