Linters are not running for Go 1.18

[ethan-lowman-dd]

See example: https://github.com/theupdateframework/go-tuf/runs/8000187792?check_suite_focus=true

level=warning msg="[linters context] gosimple is disabled because of go1.18. You can track the evolution of the go1.18 support by following the https://github.com/golangci/golangci-lint/issues/2649."
level=warning msg="[linters context] staticcheck is disabled because of go1.18. You can track the evolution of the go1.18 support by following the https://github.com/golangci/golangci-lint/issues/2649."
level=warning msg="[linters context] structcheck is disabled because of go1.18. You can track the evolution of the go1.18 support by following the https://github.com/golangci/golangci-lint/issues/2649."
level=warning msg="[linters context] unused is disabled because of go1.18. You can track the evolution of the go1.18 support by following the https://github.com/golangci/golangci-lint/issues/2649."

golangci/golangci-lint#2649

[trishankatdatadog]

What's a good fix?

[asraa]

Since we aren't using generics (which I believe is the issue), we can fallback on running with go 1.17

[ethan-lowman-dd]

I can submit a patch, I think it's quick