buildx releases: can't create /var/lock/xx-verify

[crazy-max]

Issue with xx when building buildx: https://github.com/moby/buildkit-bench/actions/runs/12373199942/job/34533060864?pr=202#step:6:409

 > [buildx-build 1/1] RUN --mount=type=bind,target=.   --mount=type=cache,target=/root/.cache   --mount=type=cache,target=/go/pkg/mod   --mount=type=bind,from=buildx-version,source=/buildx-version,target=/buildx-version <<EOT (set -e...):
0.070 + CGO_ENABLED=0 go build -mod vendor -trimpath -ldflags '-X github.com/docker/buildx/version.Version=v0.16.2 -X github.com/docker/buildx/version.Revision=99dea6dacacc3d604788953088560b9880550570 -X github.com/docker/buildx/version.Package=github.com/docker/buildx -s -w' -o /usr/bin/docker-buildx ./cmd/buildx
57.03 /usr/bin/xx-verify: line 7: can't create /var/lock/xx-verify: nonexistent directory

This is fixed in xx 1.6.1 but would need a set of patches for a bunch of buildx releases in our matrix to fix that 😣