chore(deps): bump github.com/spf13/cobra from 1.6.0 to 1.6.1

Bumps [github.com/spf13/cobra](https://github.com/spf13/cobra) from 1.6.0 to 1.6.1.
- [Release notes](https://github.com/spf13/cobra/releases)
- [Commits](https://github.com/spf13/cobra/compare/v1.6.0...v1.6.1)

---
updated-dependencies:
- dependency-name: github.com/spf13/cobra
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

go.mod

@@ -19,7 +19,7 @@ require (
 	github.com/oschwald/geoip2-golang v1.8.0
 	github.com/prometheus/client_golang v1.13.0
 	github.com/sirupsen/logrus v1.9.0
-	github.com/spf13/cobra v1.6.0
+	github.com/spf13/cobra v1.6.1
 	github.com/spf13/viper v1.13.0
 	github.com/txthinking/socks5 v0.0.0-20220212043548-414499347d4a
 	github.com/xjasonlyu/tun2socks/v2 v2.4.1