Bump golangci-lint to support 1.23

[okokes-akamai]

We use 'stable' in our Github Actions and that now refers to Go 1.23, so we need a supported version of golangci-lint for that one to work.

General:

• Have you removed all sensitive information, including but not limited to access keys and passwords?
• Have you checked to ensure there aren't other open or closed Pull Requests for the same bug/feature/question?

Pull Request Guidelines:

1. Does your submission pass tests?
2. Have you added tests?
3. Are you addressing a single feature in this PR?
4. Are your commits atomic, addressing one change per commit?
5. Are you following the conventions of the language?
6. Have you saved your large formatting changes for a different PR, so we can focus on your work?
7. Have you explained your rationale for why this feature is needed?
8. Have you linked your PR to an open issue

[okokes-akamai]

Oh... it seems to have worked, it was just slow (as it was the first run). https://github.com/linode/linode-cloud-controller-manager/actions/runs/10399222522/job/28797786593

[okokes-akamai]

I'd rather move golangci-lint to tools.go and go.mod, so that dependabot handles this automatically.