Bump go.unistack.org/micro/v3 from 3.8.14 to 3.8.15

Bumps [go.unistack.org/micro/v3](https://github.com/unistack-org/micro) from 3.8.14 to 3.8.15.
- [Release notes](https://github.com/unistack-org/micro/releases)
- [Commits](https://github.com/unistack-org/micro/compare/v3.8.14...v3.8.15)

---
updated-dependencies:
- dependency-name: go.unistack.org/micro/v3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

go.mod

@@ -4,5 +4,5 @@ go 1.16
 
 require (
 	github.com/go-redis/redis/v8 v8.11.4
-	go.unistack.org/micro/v3 v3.8.14
+	go.unistack.org/micro/v3 v3.8.15
 )

go.sum

@@ -49,8 +49,8 @@ github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 go.unistack.org/micro-proto/v3 v3.1.1 h1:78qRmltwGek5kSQ9tNmDZ9TCRvZM7YDIOgzriKvabjA=
 go.unistack.org/micro-proto/v3 v3.1.1/go.mod h1:DpRhYCBXlmSJ/AAXTmntvlh7kQkYU6eFvlmYAx4BQS8=
-go.unistack.org/micro/v3 v3.8.14 h1:gvGAh11n484XuJFt+YFUvDJUwbn/a/6/NdTdTqeUnis=
-go.unistack.org/micro/v3 v3.8.14/go.mod h1:zEbgew93bFhU+gANJubbbnPP1LtDTQRbM/17QXTbTrY=
+go.unistack.org/micro/v3 v3.8.15 h1:9KzaPmWW4CpThOT8tiq8XEG3YLmVV8hztqnzPBmJudQ=
+go.unistack.org/micro/v3 v3.8.15/go.mod h1:zEbgew93bFhU+gANJubbbnPP1LtDTQRbM/17QXTbTrY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=