fix(deps): update module github.com/moby/buildkit to v0.26.3

Generated by renovateBot

Author: renovate[bot]

go.mod

@@ -27,7 +27,7 @@ require (
 )
 
 require (
-	github.com/moby/buildkit v0.26.2
+	github.com/moby/buildkit v0.26.3
 	github.com/moby/patternmatcher v0.6.0
 	golang.org/x/mod v0.32.0
 )

go.sum

@@ -169,8 +169,8 @@ github.com/magefile/mage v1.15.0 h1:BvGheCMAsG3bWUDbZ8AyXXpCNwU9u5CB6sM+HNb9HYg=
 github.com/magefile/mage v1.15.0/go.mod h1:z5UZb/iS3GoOSn0JgWuiw7dxlurVYTu+/jHXqQg881A=
 github.com/maxbrunsfeld/counterfeiter/v6 v6.12.1 h1:D4O2wLxB384TS3ohBJMfolnxb4qGmoZ1PnWNtit8LYo=
 github.com/maxbrunsfeld/counterfeiter/v6 v6.12.1/go.mod h1:RuJdxo0oI6dClIaMzdl3hewq3a065RH65dofJP03h8I=
-github.com/moby/buildkit v0.26.2 h1:EIh5j0gzRsCZmQzvgNNWzSDbuKqwUIiBH7ssqLv8RU8=
-github.com/moby/buildkit v0.26.2/go.mod h1:ylDa7IqzVJgLdi/wO7H1qLREFQpmhFbw2fbn4yoTw40=
+github.com/moby/buildkit v0.26.3 h1:D+ruZVAk/3ipRq5XRxBH9/DIFpRjSlTtMbghT5gQP9g=
+github.com/moby/buildkit v0.26.3/go.mod h1:4T4wJzQS4kYWIfFRjsbJry4QoxDBjK+UGOEOs1izL7w=
 github.com/moby/docker-image-spec v1.3.1 h1:jMKff3w6PgbfSa69GfNg+zN/XLhfXJGnEx3Nl2EsFP0=
 github.com/moby/docker-image-spec v1.3.1/go.mod h1:eKmb5VW8vQEh/BAr2yvVNvuiJuY6UIocYsFu/DxxRpo=
 github.com/moby/locker v1.0.1 h1:fOXqR41zeveg4fFODix+1Ch4mj/gT0NE1XJbp/epuBg=