Bump github.com/moby/buildkit from 0.11.2 to 0.11.4 (#343)

Bumps [github.com/moby/buildkit](https://github.com/moby/buildkit) from 0.11.2 to 0.11.4.
- [Release notes](https://github.com/moby/buildkit/releases)
- [Commits](https://github.com/moby/buildkit/compare/v0.11.2...v0.11.4)

---
updated-dependencies:
- dependency-name: github.com/moby/buildkit
  dependency-type: indirect
...

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

go.mod

@@ -200,7 +200,7 @@ require (
 	github.com/mitchellh/go-wordwrap v1.0.1 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
-	github.com/moby/buildkit v0.11.2 // indirect
+	github.com/moby/buildkit v0.11.4 // indirect
 	github.com/moby/locker v1.0.1 // indirect
 	github.com/moby/patternmatcher v0.5.0 // indirect
 	github.com/moby/spdystream v0.2.0 // indirect