build(deps): bump github.com/unistack-org/micro-proto (#56)

Bumps [github.com/unistack-org/micro-proto](https://github.com/unistack-org/micro-proto) from 0.0.5 to 0.0.8.
- [Release notes](https://github.com/unistack-org/micro-proto/releases)
- [Commits](https://github.com/unistack-org/micro-proto/compare/v0.0.5...v0.0.8)

---
updated-dependencies:
- dependency-name: github.com/unistack-org/micro-proto
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -9,6 +9,7 @@ require (
 	github.com/patrickmn/go-cache v2.1.0+incompatible
 	github.com/silas/dag v0.0.0-20210121180416-41cf55125c34
 	github.com/stretchr/testify v1.7.0
-	github.com/unistack-org/micro-proto v0.0.5
+	github.com/unistack-org/micro-proto v0.0.8
 	golang.org/x/net v0.0.0-20210510120150-4163338589ed
+	google.golang.org/protobuf v1.26.0 // indirect
 )