fix(deps): update module gopkg.in/alecthomas/kingpin.v2 to v2.4.0

Author: renovate[bot]

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/crossplane/crossplane-tools v0.0.0-20240522174801-1ad3d4c87f21
 	github.com/google/go-cmp v0.6.0
 	github.com/pkg/errors v0.9.1
-	gopkg.in/alecthomas/kingpin.v2 v2.2.6
+	gopkg.in/alecthomas/kingpin.v2 v2.4.0
 	k8s.io/apimachinery v0.31.3
 	k8s.io/client-go v0.31.3
 	sigs.k8s.io/controller-runtime v0.19.2