Bump github.com/hashicorp/terraform-plugin-sdk/v2 from 2.15.0 to 2.16.0 (#1313)

Author: dependabot[bot]

go.mod

@@ -13,7 +13,7 @@ require (
 	github.com/hashicorp/go-retryablehttp v0.7.1
 	github.com/hashicorp/hcl v1.0.0
 	github.com/hashicorp/hcl/v2 v2.12.0
-	github.com/hashicorp/terraform-plugin-sdk/v2 v2.15.0
+	github.com/hashicorp/terraform-plugin-sdk/v2 v2.16.0
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/stretchr/testify v1.7.1
 	github.com/zclconf/go-cty v1.10.0