run modernize -fix ./...

Using golang.org/x/tools/gopls/internal/analysis/modernize/cmd/modernize

+ some manual cleanup in libpod/lock/shm/shm_lock_test.go as it
  generated an unused variable
+ restored one removed comment

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

pkg/domain/utils/utils.go

@@ -12,7 +12,7 @@ var json = jsoniter.ConfigCompatibleWithStandardLibrary
 
 // DeepCopy does a deep copy of a structure
 // Error checking of parameters delegated to json engine
-var DeepCopy = func(dst interface{}, src interface{}) error {
+var DeepCopy = func(dst any, src any) error {
 	payload, err := json.Marshal(src)
 	if err != nil {
 		return err