build(deps): bump github.com/opencontainers/image-spec (#954)

Bumps [github.com/opencontainers/image-spec](https://github.com/opencontainers/image-spec) from 1.0.1 to 1.0.2.
- [Release notes](https://github.com/opencontainers/image-spec/releases)
- [Changelog](https://github.com/opencontainers/image-spec/blob/main/RELEASES.md)
- [Commits](https://github.com/opencontainers/image-spec/compare/v1.0.1...v1.0.2)

---
updated-dependencies:
- dependency-name: github.com/opencontainers/image-spec
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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go.mod

@@ -26,7 +26,7 @@ require (
 	github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/moby/buildkit v0.9.2
-	github.com/opencontainers/image-spec v1.0.1
+	github.com/opencontainers/image-spec v1.0.2
 	github.com/opencontainers/runc v1.0.2 // indirect
 	github.com/opencontainers/selinux v1.10.0
 	github.com/pkg/errors v0.9.1