chore(deps): updated controller-tools dep to 0.4.1

[eudaimos]

Update the embedded dependency on controller-tools to v0.4.1 (latest at this time) to solve #2

Was able to validate locally to solve the problem with the following configuration in WORKSPACE

git_repository(
    name = "rules_kubebuilder",
    branch = "deps/controller-gen-to-0.4.1",
    remote = "https://github.com/eudaimos/rules_kubebuilder",
)

[ob]

Hey, thanks a lot for this PR. While this works, I wonder if it's worth decoupling the version of controller-gen from the version of rules_kubebuilder. For instance, we could add a version attribute to the rule and have both versions available. One concern with that approach would be bloating the download since the more releases they make the larger the tarball would be.

Or perhaps we could help with kubernetes-sigs/controller-tools#500 and download binaries on demand.

[eudaimos]

What you're saying makes sense to me but that's getting out of my depth atm on this. Happy to assist but need a lot of assistance and I'm on a timeline on my end.

It's worth noting that I think I saw that kubebuilder's upcoming release is supposed to point to the updated version of controller-tools but I can't find where I saw that right now (prolly open in one of my 1000 open browser tabs)

[eudaimos]

Also seems to me that providing that choice and flexibility would be great but not needed to hold up this PR