Bump github.com/docker/distribution

Bumps [github.com/docker/distribution](https://github.com/docker/distribution) from 2.8.0+incompatible to 2.8.1+incompatible.
- [Release notes](https://github.com/docker/distribution/releases)
- [Commits](https://github.com/docker/distribution/compare/v2.8.0...v2.8.1)

---
updated-dependencies:
- dependency-name: github.com/docker/distribution
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

4 files changed, 26 insertions, 5 deletions

diff --git a/vendor/github.com/docker/distribution/.mailmap b/vendor/github.com/docker/distribution/.mailmap
index 34421a4ec..8f3738f3d 100644
--- a/vendor/github.com/docker/distribution/.mailmap
+++ b/vendor/github.com/docker/distribution/.mailmap
@@ -44,3 +44,6 @@ Thomas Berger <loki@lokis-chaos.de> Thomas Berger <tbe@users.noreply.github.com>
 Samuel Karp <skarp@amazon.com> Samuel Karp <samuelkarp@users.noreply.github.com>
 Justin Cormack <justin.cormack@docker.com>
 sayboras <sayboras@yahoo.com>
+CrazyMax <github@crazymax.dev>
+CrazyMax <github@crazymax.dev> <1951866+crazy-max@users.noreply.github.com>
+CrazyMax <github@crazymax.dev> <crazy-max@users.noreply.github.com>
diff --git a/vendor/github.com/docker/distribution/Dockerfile b/vendor/github.com/docker/distribution/Dockerfile
index 9d30d3771..ae8c040c7 100644
--- a/vendor/github.com/docker/distribution/Dockerfile
+++ b/vendor/github.com/docker/distribution/Dockerfile
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1.3
 
-ARG GO_VERSION=1.16
+ARG GO_VERSION=1.16.15
 ARG GORELEASER_XX_VERSION=1.2.5
 
 FROM --platform=$BUILDPLATFORM crazymax/goreleaser-xx:${GORELEASER_XX_VERSION} AS goreleaser-xx
@@ -12,6 +12,10 @@ WORKDIR /go/src/github.com/docker/distribution
 FROM base AS build
 ENV GO111MODULE=auto
 ENV CGO_ENABLED=0
+# GIT_REF is used by goreleaser-xx to handle the proper git ref when available.
+# It will fallback to the working tree info if empty and use "git tag --points-at"
+# or "git describe" to define the version info.
+ARG GIT_REF
 ARG TARGETPLATFORM
 ARG PKG="github.com/distribution/distribution"
 ARG BUILDTAGS="include_oss include_gcs"
@@ -28,7 +32,7 @@ RUN --mount=type=bind,rw \
     --files="LICENSE" \
     --files="README.md"
 
-FROM scratch AS artifacts
+FROM scratch AS artifact
 COPY --from=build /out/*.tar.gz /
 COPY --from=build /out/*.zip /
 COPY --from=build /out/*.sha256 /
diff --git a/vendor/github.com/docker/distribution/README.md b/vendor/github.com/docker/distribution/README.md
index 998878850..e513c18e9 100644
--- a/vendor/github.com/docker/distribution/README.md
+++ b/vendor/github.com/docker/distribution/README.md
@@ -2,7 +2,7 @@
 
 The Docker toolset to pack, ship, store, and deliver content.
 
-This repository's main product is the Docker Registry 2.0 implementation
+This repository provides the Docker Registry 2.0 implementation
 for storing and distributing Docker images. It supersedes the
 [docker/docker-registry](https://github.com/docker/docker-registry)
 project with a new API design, focused around security and performance.
diff --git a/vendor/github.com/docker/distribution/docker-bake.hcl b/vendor/github.com/docker/distribution/docker-bake.hcl
index e1457bb81..4dd5a100c 100644
--- a/vendor/github.com/docker/distribution/docker-bake.hcl
+++ b/vendor/github.com/docker/distribution/docker-bake.hcl
@@ -1,3 +1,15 @@
+// GITHUB_REF is the actual ref that triggers the workflow
+// https://docs.github.com/en/actions/learn-github-actions/environment-variables#default-environment-variables
+variable "GITHUB_REF" {
+  default = ""
+}
+
+target "_common" {
+  args = {
+    GIT_REF = GITHUB_REF
+  }
+}
+
 group "default" {
   targets = ["image-local"]
 }
@@ -8,12 +20,14 @@ target "docker-metadata-action" {
 }
 
 target "binary" {
+  inherits = ["_common"]
   target = "binary"
   output = ["./bin"]
 }
 
 target "artifact" {
-  target = "artifacts"
+  inherits = ["_common"]
+  target = "artifact"
   output = ["./bin"]
 }
 
@@ -30,7 +44,7 @@ target "artifact-all" {
 }
 
 target "image" {
-  inherits = ["docker-metadata-action"]
+  inherits = ["_common", "docker-metadata-action"]
 }
 
 target "image-local" {