ci(deps): update dependency docker/buildx to v0.21.1

[eoeo-renovate]

This PR contains the following updates:

Package	Update	Change
docker/buildx	minor	v0.20.1 -> v0.21.1

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Release Notes

docker/buildx (docker/buildx)

v0.21.1

Compare Source

Welcome to the v0.21.1 release of buildx!

Please try out the release binaries and report any issues at
https://github.com/docker/buildx/issues.

Contributors

• CrazyMax
• Tõnis Tiigi

Notable Changes

• Remove accidental debug #​3017

Dependency Changes

This release has no dependency changes

Previous release can be found at v0.21.0

v0.21.0

Compare Source

Welcome to the v0.21.0 release of buildx!

Please try out the release binaries and report any issues at
https://github.com/docker/buildx/issues.

Contributors

• CrazyMax
• Tõnis Tiigi
• Sebastiaan van Stijn
• Jonathan A. Sternberg
• David Karlsson
• Nicolas De Loof

Notable Changes

• New command buildx history trace allows inspecting traces of a build in a Jaeger UI-based viewer and comparing one trace with another. #​2904
• The history inspection command buildx history inspect now supports custom formatting with --format flag and JSON formatting for machine-readable output. #​2964
• Support for CDI device entitlement in build and bake. #​2994
• Supported CDI devices are now shown in the builder inspection. #​2983
• When using Github Cache backend type=gha, the URL for the Version 2 or API is now read from the environment and sent to BuildKit. Version 2 backend requires BuildKit v0.20.0 or later. #​2983 #​3001
• Avoid unnecessary warnings and prompts when using --progress=rawjson #​2957
• Fix regression with debug shell sometimes not working correctly on --on=error #​2958
• Fix possible panic errors when using an unknown variable in the Bake definition. #​2960
• Fix invalid duplicate output on JSON format formatting of buildx ls command. #​2970
• Fix bake handling cache imports with CSV string containing multiple registry references. #​2944
• Fix issue where error from pulling BuildKit image could be ignored. #​2988
• Fix race on pausing progress on debug shell. #​3003

Dependency Changes

• github.com/Azure/go-ansiterm d185dfc -> faa5f7b
• github.com/docker/cli v27.5.0 -> v28.0.0-rc.2
• github.com/docker/docker v27.5.0 -> v28.0.0-rc.2
• github.com/moby/buildkit v0.19.0 -> v0.20.0
• github.com/moby/term v0.5.0 -> v0.5.2
• github.com/tonistiigi/jaeger-ui-rest 7d4944a new
• go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.31.0 new
• golang.org/x/exp 701f63a -> 2d47ceb
• golang.org/x/mod v0.21.0 -> v0.22.0
• golang.org/x/sys v0.28.0 -> v0.29.0
• golang.org/x/tools v0.25.0 -> v0.27.0
• google.golang.org/genproto/googleapis/api 5fefd90 -> 324edc3
• google.golang.org/grpc v1.68.1 -> v1.69.4

Previous release can be found at v0.20.1

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