Update golangci-lint and gotestsum to latest stable
This MR updates golangci-lint to v1.56.2 and gotestsum to v1.11.0 to keep up-to-date with the latest, stable versions.
This MR updates golangci-lint to v1.56.2 and gotestsum to v1.11.0 to keep up-to-date with the latest, stable versions.