Bump github.com/stretchr/testify from 1.8.0 to 1.8.1

Bumps [github.com/stretchr/testify](https://github.com/stretchr/testify) from 1.8.0 to 1.8.1.
- [Release notes](https://github.com/stretchr/testify/releases)
- [Commits](stretchr/testify@v1.8.0...v1.8.1)

---
updated-dependencies:
- dependency-name: github.com/stretchr/testify
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

go.mod

@@ -35,7 +35,7 @@ require (
 	github.com/shirou/gopsutil/v3 v3.22.9
 	github.com/sirupsen/logrus v1.9.0
 	github.com/spf13/cobra v1.6.0
-	github.com/stretchr/testify v1.8.0
+	github.com/stretchr/testify v1.8.1
 	github.com/things-go/go-socks5 v0.0.3-0.20210722055343-24af464efe43
 	github.com/yiya1989/sshkrb5 v0.0.0-20201110125252-a1455b75a35e
 	golang.org/x/crypto v0.0.0-20220829220503-c86fa9a7ed90