Bump github.com/opencontainers/go-digest from 1.0.0-rc1 to 1.0.0

Bumps [github.com/opencontainers/go-digest](https://github.com/opencontainers/go-digest) from 1.0.0-rc1 to 1.0.0.
- [Release notes](https://github.com/opencontainers/go-digest/releases)
- [Commits](opencontainers/go-digest@v1.0.0-rc1...v1.0.0)

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

Author: dependabot-preview[bot]

go.mod

@@ -15,7 +15,7 @@ require (
 	github.com/mattn/go-zglob v0.0.1
 	github.com/mholt/archiver v3.1.1+incompatible
 	github.com/nwaples/rardecode v1.0.0 // indirect
-	github.com/opencontainers/go-digest v1.0.0-rc1
+	github.com/opencontainers/go-digest v1.0.0
 	github.com/opencontainers/image-spec v1.0.2-0.20190823105129-775207bd45b6
 	github.com/pierrec/lz4 v2.4.0+incompatible // indirect
 	github.com/pkg/errors v0.9.1

go.sum

@@ -264,6 +264,8 @@ github.com/onsi/gomega v1.7.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1Cpa
 github.com/opencontainers/go-digest v0.0.0-20180430190053-c9281466c8b2/go.mod h1:cMLVZDEM3+U2I4VmLI6N8jQYUd2OVphdqWwCJHrFt2s=
 github.com/opencontainers/go-digest v1.0.0-rc1 h1:WzifXhOVOEOuFYOJAW6aQqW0TooG2iki3E3Ii+WN7gQ=
 github.com/opencontainers/go-digest v1.0.0-rc1/go.mod h1:cMLVZDEM3+U2I4VmLI6N8jQYUd2OVphdqWwCJHrFt2s=
+github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
+github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
 github.com/opencontainers/image-spec v1.0.1 h1:JMemWkRwHx4Zj+fVxWoMCFm/8sYGGrUVojFA6h/TRcI=
 github.com/opencontainers/image-spec v1.0.1/go.mod h1:BtxoFyWECRxE4U/7sNtV5W15zMzWCbyJoFRP3s7yZA0=
 github.com/opencontainers/image-spec v1.0.2-0.20190823105129-775207bd45b6 h1:yN8BPXVwMBAm3Cuvh1L5XE8XpvYRMdsVLd82ILprhUU=