build(deps): bump github.com/alecthomas/kong from 0.3.0 to 0.6.1 (#8398)

Bumps [github.com/alecthomas/kong](https://github.com/alecthomas/kong) from 0.3.0 to 0.6.1.
- [Release notes](https://github.com/alecthomas/kong/releases)
- [Commits](https://github.com/alecthomas/kong/compare/v0.3.0...v0.6.1)

---
updated-dependencies:
- dependency-name: github.com/alecthomas/kong
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

go.mod

@@ -5,7 +5,7 @@ go 1.17
 require (
 	github.com/AudriusButkevicius/pfilter v0.0.10
 	github.com/AudriusButkevicius/recli v0.0.6
-	github.com/alecthomas/kong v0.3.0
+	github.com/alecthomas/kong v0.6.1
 	github.com/calmh/xdr v1.1.0
 	github.com/ccding/go-stun v0.1.3
 	github.com/certifi/gocertifi v0.0.0-20210507211836-431795d63e8d // indirect