chore(gemfile.lock): update for `kitchen-vagrant`

Gemfile.lock

@@ -287,6 +287,8 @@ GEM
     kitchen-salt (0.6.3)
       hashie (>= 3.5)
       test-kitchen (>= 1.4)
+    kitchen-vagrant (1.6.1)
+      test-kitchen (>= 1.4, < 3)
     libyajl2 (1.2.0)
     license-acceptance (1.0.19)
       pastel (~> 0.7)
@@ -526,6 +528,7 @@ DEPENDENCIES
   kitchen-docker (>= 2.9)
   kitchen-inspec (>= 1.1)
   kitchen-salt (>= 0.6.0)
+  kitchen-vagrant
 
 BUNDLED WITH
    2.1.2