chore: Enable specific linters instead of enabling them all

[alexandear]

This PR changes golangci-lint configuration by replacing enable-all + disable specific linters with disable-all + enable specific linters. This is better because, in the case of upgrading the golangci-lint version, we don't need to fix additional lint issues introduced by the new version. Additionally, this setting is more stable because some linters are deprecated and removed from golangci-lint from time to time.

I used the command golangci-lint linters to see the list of currently enabled linters before changing the .golangci.yml file.

[erikdubbelboer]

To be honest I don't think this is better. I prefer new linters to automatically be enabled. If they aren't, we're going to forget about them and never enable them. I also prefer deprecated linters to automatically be removed.