Merge pull request #22074 from docker-tools-robot/dispatch/buildx-ref-v0.21.1

Update buildx reference to v0.21.1

Author: crazy-max

_vendor/modules.txt

@@ -1,6 +1,6 @@
 # github.com/moby/moby v28.0.0+incompatible
 # github.com/moby/buildkit v0.20.0
-# github.com/docker/buildx v0.21.0
+# github.com/docker/buildx v0.21.1
 # github.com/docker/cli v28.0.0+incompatible
 # github.com/docker/compose/v2 v2.33.0
 # github.com/docker/scout-cli v1.15.0

go.mod

@@ -3,7 +3,7 @@ module github.com/docker/docs
 go 1.23.1
 
 require (
-	github.com/docker/buildx v0.21.0 // indirect
+	github.com/docker/buildx v0.21.1 // indirect
 	github.com/docker/cli v28.0.0+incompatible // indirect
 	github.com/docker/compose/v2 v2.33.0 // indirect
 	github.com/docker/scout-cli v1.15.0 // indirect
@@ -12,7 +12,7 @@ require (
 )
 
 replace (
-	github.com/docker/buildx => github.com/docker/buildx v0.21.0
+	github.com/docker/buildx => github.com/docker/buildx v0.21.1
 	github.com/docker/cli => github.com/docker/cli v28.0.0+incompatible
 	github.com/docker/compose/v2 => github.com/docker/compose/v2 v2.32.4
 	github.com/docker/scout-cli => github.com/docker/scout-cli v1.15.0

go.sum

@@ -94,6 +94,8 @@ github.com/docker/buildx v0.20.1 h1:q88EfoYwrWEKVqNb9stOFq8fUlFp/OPlDcFE+QUYZBM=
 github.com/docker/buildx v0.20.1/go.mod h1:VVi4Nvo4jd/IkRvwyExbIyW7u82fivK61MRx5I0oKic=
 github.com/docker/buildx v0.21.0 h1:cp++wh60cjMraq8VXM59jV1aolR3eFIkCx1Z7o5Q2ZY=
 github.com/docker/buildx v0.21.0/go.mod h1:8V4UMnlKsaGYwz83BygmIbJIFEAYGHT6KAv8akDZmqo=
+github.com/docker/buildx v0.21.1 h1:YjV2k6CsSDbkDTOMsjARUIrj2xv+zZR+M2dtrRyzXhg=
+github.com/docker/buildx v0.21.1/go.mod h1:8V4UMnlKsaGYwz83BygmIbJIFEAYGHT6KAv8akDZmqo=
 github.com/docker/cli v24.0.2+incompatible h1:QdqR7znue1mtkXIJ+ruQMGQhpw2JzMJLRXp6zpzF6tM=
 github.com/docker/cli v24.0.2+incompatible/go.mod h1:JLrzqnKDaYBop7H2jaqPtU4hHvMKP+vjCwu2uszcLI8=
 github.com/docker/cli v24.0.4+incompatible h1:Y3bYF9ekNTm2VFz5U/0BlMdJy73D+Y1iAAZ8l63Ydzw=