ci: update buildkit ref for ci

Signed-off-by: Jonathan A. Sternberg <jonathan.sternberg@docker.com>

Author: jsternberg

.github/workflows/build.yml

@@ -54,9 +54,9 @@ jobs:
           - master
           - latest
           - buildx-stable-1
+          - v0.25.0
           - v0.24.0
           - v0.23.2
-          - v0.22.0
         worker:
           - docker-container
           - remote

Dockerfile

@@ -11,7 +11,7 @@ ARG DOCKER_VERSION_ALT_26=26.1.3
 ARG DOCKER_CLI_VERSION=${DOCKER_VERSION}
 ARG GOTESTSUM_VERSION=v1.12.0
 ARG REGISTRY_VERSION=3.0.0
-ARG BUILDKIT_VERSION=v0.24.0
+ARG BUILDKIT_VERSION=v0.25.0
 ARG COMPOSE_VERSION=v2.39.1
 ARG UNDOCK_VERSION=0.9.0