enable gofumpt formatter

Based on our discussion gofumpt won the vote so use that one via
golangci-lint.

https://github.com/containers/podman/discussions/27291

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

test/e2e/tree_test.go

@@ -9,7 +9,6 @@ import (
 )
 
 var _ = Describe("Podman image tree", func() {
-
 	BeforeEach(func() {
 		podmanTest.AddImageToRWStore(BB)
 	})