vendor: update buildkit v0.26.0-rc2

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

go.mod

@@ -8,11 +8,11 @@ require (
 	github.com/aws/aws-sdk-go-v2/config v1.31.3
 	github.com/compose-spec/compose-go/v2 v2.9.1
 	github.com/containerd/console v1.0.5
-	github.com/containerd/containerd/v2 v2.2.0-rc.1
+	github.com/containerd/containerd/v2 v2.2.0
 	github.com/containerd/continuity v0.4.5
 	github.com/containerd/errdefs v1.0.0
 	github.com/containerd/log v0.1.0
-	github.com/containerd/platforms v1.0.0-rc.1
+	github.com/containerd/platforms v1.0.0-rc.2
 	github.com/creack/pty v1.1.24
 	github.com/davecgh/go-spew v1.1.1
 	github.com/distribution/reference v0.6.0
@@ -29,7 +29,7 @@ require (
 	github.com/hashicorp/hcl/v2 v2.24.0
 	github.com/in-toto/in-toto-golang v0.9.0
 	github.com/mitchellh/hashstructure/v2 v2.0.2
-	github.com/moby/buildkit v0.26.0-rc1
+	github.com/moby/buildkit v0.26.0-rc2
 	github.com/moby/go-archive v0.1.0
 	github.com/moby/sys/atomicwriter v0.1.0
 	github.com/moby/sys/mountinfo v0.7.2
@@ -88,7 +88,7 @@ require (
 	github.com/aws/aws-sdk-go-v2/service/sts v1.38.0 // indirect
 	github.com/aws/smithy-go v1.22.5 // indirect
 	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
-	github.com/containerd/containerd/api v1.10.0-rc.0 // indirect
+	github.com/containerd/containerd/api v1.10.0 // indirect
 	github.com/containerd/errdefs/pkg v0.3.0 // indirect
 	github.com/containerd/ttrpc v1.2.7 // indirect
 	github.com/containerd/typeurl/v2 v2.2.3 // indirect