Bump terraform-plugin-sdk version

Bump terraform-plugin-sdk version due to a
security vulnerability.

Signed-off-by: Ferran Rodenas <[email protected]>

Author: frodenas

go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/go-openapi/runtime v0.22.0
 	github.com/go-openapi/strfmt v0.21.1
 	github.com/go-openapi/swag v0.21.1 // indirect
-	github.com/hashicorp/terraform-plugin-sdk/v2 v2.7.0
+	github.com/hashicorp/terraform-plugin-sdk/v2 v2.16.0
 	github.com/vmware/vra-sdk-go v0.4.0
 	go.mongodb.org/mongo-driver v1.8.3 // indirect
 	golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd // indirect