vendor: update all dependencies to latest versions

vendor/github.com/pengsrc/go-shared/check/dir.go

@@ -0,0 +1,17 @@
+package check
+
+import (
+	"fmt"
+	"os"
+)
+
+// Dir checks the given path, will return error if path not exists or path
+// is not directory.
+func Dir(path string) error {
+	if info, err := os.Stat(path); err != nil {
+		return fmt.Errorf(`directory not exists: %s`, path)
+	} else if !info.IsDir() {
+		return fmt.Errorf(`path is not directory: %s`, path)
+	}
+	return nil
+}