updating dashboard dependency version and resolve conflicts

Signed-off-by: junotx <junotx@126.com>

vendor/github.com/grpc-ecosystem/grpc-gateway/utilities/readerfactory.go

@@ -1,20 +0,0 @@
-package utilities
-
-import (
-	"bytes"
-	"io"
-	"io/ioutil"
-)
-
-// IOReaderFactory takes in an io.Reader and returns a function that will allow you to create a new reader that begins
-// at the start of the stream
-func IOReaderFactory(r io.Reader) (func() io.Reader, error) {
-	b, err := ioutil.ReadAll(r)
-	if err != nil {
-		return nil, err
-	}
-
-	return func() io.Reader {
-		return bytes.NewReader(b)
-	}, nil
-}