func NewContext(ctx gcontext.Context, logger log.Logger) *Context {
	return &Context{
		Context: ctx,
		logger:  logger,
	}
}
NewContext return a new Context
package context
import (
	gcontext "context"
	"github.com/pingcap/dumpling/v4/log"
)
type Context struct {
	gcontext.Context
	logger log.Logger
}
func Background() *Context {
	return &Context{
		Context: gcontext.Background(),
		logger:  log.Zap(),
	}
}