Update golangci/golangci-lint Docker tag to v1.55.0

[renovate]

This PR contains the following updates:

Package	Update	Change
golangci/golangci-lint	minor	v1.54.2 -> v1.55.0

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[nadiamoe]

@pablochacin I'm proposing to disable these new linters as they do not seem very useful to me. LMK your thoughts about it, if you think they can be useful we can re-enable them and make the changes they suggest to the code.

[pablochacin]

@roobre I think goconst may be useful as in general seems a sane convention (even if maybe we don't fully adhere to it). leave it up to you to decide.

[nadiamoe]

I reenabled goconst, it was not too hard to please it. I de-splitted some t.Errorf that were causing it to fire, and added a nolint directive to an iptables rule fragment we use quite a lot.

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