Bump github.com/docker/distribution

Bumps [github.com/docker/distribution](https://github.com/docker/distribution) from 2.7.1+incompatible to 2.8.2+incompatible.
- [Release notes](https://github.com/docker/distribution/releases)
- [Commits](distribution/distribution@v2.7.1...v2.8.2)

---
updated-dependencies:
- dependency-name: github.com/docker/distribution
  dependency-type: indirect
...

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

Author: dependabot[bot]

go.mod

@@ -18,7 +18,7 @@ require (
 	github.com/aerospike/aerospike-client-go v2.2.0+incompatible // indirect
 	github.com/aws/aws-lambda-go v1.31.0
 	github.com/aws/aws-sdk-go v1.44.156
-	github.com/docker/distribution v2.7.1+incompatible // indirect
+	github.com/docker/distribution v2.8.2+incompatible // indirect
 	github.com/docker/docker v0.7.3-0.20190515030239-f4b9142210e9
 	github.com/docker/go-connections v0.4.0
 	github.com/docker/go-units v0.4.0 // indirect

go.sum

@@ -105,6 +105,8 @@ github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumC
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/docker/distribution v2.7.1+incompatible h1:a5mlkVzth6W5A4fOsS3D2EO5BUmsJpcB+cRlLU7cSug=
 github.com/docker/distribution v2.7.1+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w=
+github.com/docker/distribution v2.8.2+incompatible h1:T3de5rq0dB1j30rp0sA2rER+m322EBzniBPB6ZIzuh8=
+github.com/docker/distribution v2.8.2+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w=
 github.com/docker/docker v0.7.3-0.20190515030239-f4b9142210e9 h1:zhTCnvkv7K6RWFSGN8VVfUzkXuBx7bW5nmhHfjxbKRs=
 github.com/docker/docker v0.7.3-0.20190515030239-f4b9142210e9/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
 github.com/docker/go-connections v0.4.0 h1:El9xVISelRB7BuFusrZozjnkIM5YnzCViNKohAFqRJQ=