Update go-execute and cobra

Go 1.21 is the minimum version to use this package as a
module.

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

go.mod

@@ -1,12 +1,12 @@
 module github.com/alexellis/k3sup
 
-go 1.20
+go 1.21
 
 require (
-	github.com/alexellis/go-execute/v2 v2.0.0
+	github.com/alexellis/go-execute/v2 v2.2.1
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/morikuni/aec v1.0.0
-	github.com/spf13/cobra v1.7.0
+	github.com/spf13/cobra v1.8.0
 	golang.org/x/crypto v0.17.0
 	golang.org/x/term v0.15.0
 )

go.sum

@@ -1,6 +1,9 @@
 github.com/alexellis/go-execute/v2 v2.0.0 h1:e2fB9kZcPG0yg65XHL1/t6efcCUdt32AMbr/mv7A2tc=
 github.com/alexellis/go-execute/v2 v2.0.0/go.mod h1:FMdRnUTiFAmYXcv23txrp3VYZfLo24nMpiIneWgKHTQ=
+github.com/alexellis/go-execute/v2 v2.2.1 h1:4Ye3jiCKQarstODOEmqDSRCqxMHLkC92Bhse743RdOI=
+github.com/alexellis/go-execute/v2 v2.2.1/go.mod h1:FMdRnUTiFAmYXcv23txrp3VYZfLo24nMpiIneWgKHTQ=
 github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
@@ -10,6 +13,8 @@ github.com/morikuni/aec v1.0.0/go.mod h1:BbKIizmSmc5MMPqRYbxO4ZU0S0+P200+tUnFx7P
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/spf13/cobra v1.7.0 h1:hyqWnYt1ZQShIddO5kBpj3vu05/++x6tJ6dg8EC572I=
 github.com/spf13/cobra v1.7.0/go.mod h1:uLxZILRyS/50WlhOIKD7W6V5bgeIt+4sICxh6uRMrb0=
+github.com/spf13/cobra v1.8.0 h1:7aJaZx1B85qltLMc546zn58BxxfZdR/W22ej9CFoEf0=
+github.com/spf13/cobra v1.8.0/go.mod h1:WXLWApfZ71AjXPya3WOlMsY9yMs7YeiHhFVlvLyhcho=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 golang.org/x/crypto v0.17.0 h1:r8bRNjWL3GshPW3gkd+RpvzWrZAwPS49OmTGZ/uhM4k=