bump govmomi to pickup a config check fix

Signed-off-by: Yassine TIJANI <[email protected]>

Author: yastij

go.mod

@@ -11,7 +11,7 @@ require (
 	github.com/onsi/gomega v1.9.0
 	github.com/pkg/errors v0.9.1
 	github.com/spf13/cobra v0.0.6
-	github.com/vmware/govmomi v0.23.0
+	github.com/vmware/govmomi v0.23.1
 	golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d
 	gopkg.in/gcfg.v1 v1.2.3
 	gopkg.in/warnings.v0 v0.1.2 // indirect