Bump github.com/opencontainers/image-spec from 1.0.1 to 1.0.2

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](opencontainers/image-spec@v1.0.1...v1.0.2)

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

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -12,7 +12,7 @@ require (
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/moby/term v0.0.0-20210619224110-3f7ff695adc6
 	github.com/morikuni/aec v1.0.0 // indirect
-	github.com/opencontainers/image-spec v1.0.1
+	github.com/opencontainers/image-spec v1.0.2
 	github.com/sirupsen/logrus v1.8.1
 	github.com/spf13/cast v1.4.0 // indirect
 	github.com/spf13/cobra v1.1.3
@@ -41,10 +41,7 @@ require (
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/subosito/gotenv v1.2.0 // indirect
-	golang.org/x/mod v0.4.2 // indirect
 	golang.org/x/text v0.3.6 // indirect
-	golang.org/x/tools v0.1.5 // indirect
-	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
 	google.golang.org/protobuf v1.27.1 // indirect
 	gopkg.in/ini.v1 v1.62.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect