chore: bump github.com/moby/buildkit from 0.26.2 to 0.26.3 (project-copacetic#1422)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

go.mod

@@ -22,7 +22,7 @@ require (
 	github.com/knqyf263/go-apk-version v0.0.0-20200609155635-041fdbb8563f
 	github.com/knqyf263/go-deb-version v0.0.0-20241115132648-6f4aee6ccd23
 	github.com/knqyf263/go-rpm-version v0.0.0-20220614171824-631e686d1075
-	github.com/moby/buildkit v0.26.2
+	github.com/moby/buildkit v0.26.3
 	github.com/opencontainers/go-digest v1.0.0
 	github.com/opencontainers/image-spec v1.1.1
 	github.com/openvex/go-vex v0.2.7

go.sum

@@ -335,8 +335,8 @@ github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG
 github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
 github.com/mitchellh/hashstructure/v2 v2.0.2 h1:vGKWl0YJqUNxE8d+h8f6NJLcCJrgbhC4NcD46KavDd4=
 github.com/mitchellh/hashstructure/v2 v2.0.2/go.mod h1:MG3aRVU/N29oo/V/IhBX8GR/zz4kQkprJgF2EVszyDE=
-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=