build(deps): bump github.com/moby/buildkit from 0.12.3 to 0.12.4 (#2113)

Bumps [github.com/moby/buildkit](https://github.com/moby/buildkit) from 0.12.3 to 0.12.4.
- [Release notes](https://github.com/moby/buildkit/releases)
- [Commits](https://github.com/moby/buildkit/compare/v0.12.3...v0.12.4)

---
updated-dependencies:
- dependency-name: github.com/moby/buildkit
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

go.mod

@@ -19,7 +19,7 @@ require (
 	github.com/julienschmidt/httprouter v1.3.0
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51
 	github.com/mattn/go-isatty v0.0.20
-	github.com/moby/buildkit v0.12.3
+	github.com/moby/buildkit v0.12.4
 	github.com/moby/patternmatcher v0.6.0
 	github.com/opencontainers/image-spec v1.1.0-rc5
 	github.com/opencontainers/selinux v1.11.0
@@ -59,7 +59,7 @@ require (
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
 	github.com/kevinburke/ssh_config v1.2.0 // indirect
-	github.com/klauspost/compress v1.16.3 // indirect
+	github.com/klauspost/compress v1.17.2 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-runewidth v0.0.15 // indirect
 	github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b // indirect