avoid "any" as variable name

Avoid shadowing / confusion with Go's "any" built-in type.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

protobuf/any.go

@@ -39,9 +39,9 @@ func FromAny(from typeurl.Any) *anypb.Any {
 
 // MarshalAnyToProto converts an arbitrary interface to github.com/containerd/containerd/protobuf/types.Any.
 func MarshalAnyToProto(from interface{}) (*anypb.Any, error) {
-	any, err := typeurl.MarshalAny(from)
+	anyType, err := typeurl.MarshalAny(from)
 	if err != nil {
 		return nil, err
 	}
-	return FromAny(any), nil
+	return FromAny(anyType), nil
 }