chore(deps): update module github.com/alecthomas/kong to v1 (#457)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

_examples/server/go.mod

@@ -4,7 +4,7 @@ go 1.13
 
 require (
 	github.com/alecthomas/colour v0.1.0
-	github.com/alecthomas/kong v0.9.0
+	github.com/alecthomas/kong v1.2.1
 	github.com/chzyer/readline v1.5.1
 	github.com/chzyer/test v1.0.0 // indirect
 	github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568 // indirect

_examples/server/go.sum

@@ -1,5 +1,6 @@
 github.com/alecthomas/assert/v2 v2.1.0/go.mod h1:b/+1DI2Q6NckYi+3mXyH3wFb8qG37K/DuK80n7WefXA=
 github.com/alecthomas/assert/v2 v2.6.0/go.mod h1:Bze95FyfUr7x34QZrjL+XP+0qgp/zg8yS+TtBj1WA3k=
+github.com/alecthomas/assert/v2 v2.10.0/go.mod h1:Bze95FyfUr7x34QZrjL+XP+0qgp/zg8yS+TtBj1WA3k=
 github.com/alecthomas/colour v0.1.0 h1:nOE9rJm6dsZ66RGWYSFrXw461ZIt9A6+nHgL7FRrDUk=
 github.com/alecthomas/colour v0.1.0/go.mod h1:QO9JBoKquHd+jz9nshCh40fOfO+JzsoXy8qTHF68zU0=
 github.com/alecthomas/kong v0.2.1 h1:V1tLBhyQBC4rsbXbcOvm3GBaytJSwRNX69fp1WJxbqQ=
@@ -8,6 +9,8 @@ github.com/alecthomas/kong v0.8.1 h1:acZdn3m4lLRobeh3Zi2S2EpnXTd1mOL6U7xVml+vfkY
 github.com/alecthomas/kong v0.8.1/go.mod h1:n1iCIO2xS46oE8ZfYCNDqdR0b0wZNrXAIAqro/2132U=
 github.com/alecthomas/kong v0.9.0 h1:G5diXxc85KvoV2f0ZRVuMsi45IrBgx9zDNGNj165aPA=
 github.com/alecthomas/kong v0.9.0/go.mod h1:Y47y5gKfHp1hDc7CH7OeXgLIpp+Q2m1Ni0L5s3bI8Os=
+github.com/alecthomas/kong v1.2.1 h1:E8jH4Tsgv6wCRX2nGrdPyHDUCSG83WH2qE4XLACD33Q=
+github.com/alecthomas/kong v1.2.1/go.mod h1:rKTSFhbdp3Ryefn8x5MOEprnRFQ7nlmMC01GKhehhBM=
 github.com/alecthomas/repr v0.1.0/go.mod h1:2kn6fqh/zIyPLmm3ugklbEi5hg5wS435eygvNfaDQL8=
 github.com/alecthomas/repr v0.4.0/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
 github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239 h1:kFOfPq6dUM1hTo4JG6LR5AXSUEsOjtdm0kw0FtQtMJA=