Merge pull request kubernetes-sigs#4672 from kersten/chore/enable-gofumpt-linter

🌱 (chore): add gofumpt to golangci-lint configuration

Author: k8s-ci-robot

.golangci.yml

@@ -74,6 +74,7 @@ linters:
     - goconst
     - gocyclo
     - gofmt
+    - gofumpt
     - goimports
     - gosimple
     - govet