go.mod: update br to the new version (#25127)

go.mod

@@ -37,7 +37,7 @@ require (
 	github.com/opentracing/opentracing-go v1.1.0
 	github.com/phayes/freeport v0.0.0-20180830031419-95f893ade6f2
 	github.com/pingcap/badger v1.5.1-0.20200908111422-2e78ee155d19
-	github.com/pingcap/br v5.1.0-alpha.0.20210526054934-d5f5f9df24f5+incompatible
+	github.com/pingcap/br v5.1.0-alpha.0.20210604015827-db22c6d284a0+incompatible
 	github.com/pingcap/check v0.0.0-20200212061837-5e12011dc712
 	github.com/pingcap/errors v0.11.5-0.20201126102027-b0a155152ca3
 	github.com/pingcap/failpoint v0.0.0-20210316064728-7acb0f0a3dfd

go.sum

@@ -407,8 +407,8 @@ github.com/phf/go-queue v0.0.0-20170504031614-9abe38d0371d h1:U+PMnTlV2tu7RuMK5e
 github.com/phf/go-queue v0.0.0-20170504031614-9abe38d0371d/go.mod h1:lXfE4PvvTW5xOjO6Mba8zDPyw8M93B6AQ7frTGnMlA8=
 github.com/pingcap/badger v1.5.1-0.20200908111422-2e78ee155d19 h1:IXpGy7y9HyoShAFmzW2OPF0xCA5EOoSTyZHwsgYk9Ro=
 github.com/pingcap/badger v1.5.1-0.20200908111422-2e78ee155d19/go.mod h1:LyrqUOHZrUDf9oGi1yoz1+qw9ckSIhQb5eMa1acOLNQ=
-github.com/pingcap/br v5.1.0-alpha.0.20210526054934-d5f5f9df24f5+incompatible h1:JXkYrdHpoW0Ht6fI+pl9SC7OcNpYvJg8hc/6i+V60Eo=
-github.com/pingcap/br v5.1.0-alpha.0.20210526054934-d5f5f9df24f5+incompatible/go.mod h1:ymVmo50lQydxib0tmK5hHk4oteB7hZ0IMCArunwy3UQ=
+github.com/pingcap/br v5.1.0-alpha.0.20210604015827-db22c6d284a0+incompatible h1:+kzI8gD8buDo3y/IQiifiMHD5uIBB0GQJf3Myoj14uY=
+github.com/pingcap/br v5.1.0-alpha.0.20210604015827-db22c6d284a0+incompatible/go.mod h1:ymVmo50lQydxib0tmK5hHk4oteB7hZ0IMCArunwy3UQ=
 github.com/pingcap/check v0.0.0-20190102082844-67f458068fc8/go.mod h1:B1+S9LNcuMyLH/4HMTViQOJevkGiik3wW2AN9zb2fNQ=
 github.com/pingcap/check v0.0.0-20191107115940-caf2b9e6ccf4/go.mod h1:PYMCGwN0JHjoqGr3HrZoD+b8Tgx8bKnArhSq8YVzUMc=
 github.com/pingcap/check v0.0.0-20191216031241-8a5a85928f12/go.mod h1:PYMCGwN0JHjoqGr3HrZoD+b8Tgx8bKnArhSq8YVzUMc=