Bump kitchen-vagrant from 1.6.1 to 1.8.0 in /omnibus

Bumps [kitchen-vagrant](https://github.com/opscode/kitchen-vagrant) from 1.6.1 to 1.8.0.
- [Release notes](https://github.com/opscode/kitchen-vagrant/releases)
- [Changelog](https://github.com/test-kitchen/kitchen-vagrant/blob/master/CHANGELOG.md)
- [Commits](test-kitchen/kitchen-vagrant@v1.6.1...v1.8.0)

---
updated-dependencies:
- dependency-name: kitchen-vagrant
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

omnibus/Gemfile.lock

@@ -116,8 +116,7 @@ GEM
     concurrent-ruby (1.1.6)
     diff-lcs (1.3)
     ed25519 (1.2.4)
-    equatable (0.6.1)
-    erubi (1.9.0)
+    erubi (1.10.0)
     erubis (2.7.0)
     faraday (1.0.1)
       multipart-post (>= 1.2, < 3)
@@ -127,7 +126,7 @@ GEM
     ffi-yajl (2.4.0)
       libyajl2 (>= 1.2)
     fuzzyurl (0.9.0)
-    gssapi (1.3.0)
+    gssapi (1.3.1)
       ffi (>= 1.0.1)
     gyoku (1.3.1)
       builder (>= 2.1.2)
@@ -139,7 +138,7 @@ GEM
     ipaddress (0.8.3)
     jmespath (1.4.0)
     json (2.5.1)
-    kitchen-vagrant (1.6.1)
+    kitchen-vagrant (1.8.0)
       test-kitchen (>= 1.4, < 3)
     libyajl2 (2.1.0)
     license-acceptance (1.0.19)
@@ -162,7 +161,7 @@ GEM
     mixlib-cli (2.1.8)
     mixlib-config (3.0.9)
       tomlrb
-    mixlib-install (3.12.1)
+    mixlib-install (3.12.11)
       mixlib-shellout
       mixlib-versioning
       thor
@@ -173,7 +172,6 @@ GEM
     molinillo (0.6.6)
     multi_json (1.15.0)
     multipart-post (2.1.1)
-    necromancer (0.5.1)
     net-scp (3.0.0)
       net-ssh (>= 2.6.5, < 7.0.0)
     net-sftp (3.0.0)
@@ -201,8 +199,7 @@ GEM
       plist (~> 3.1)
       train-core
       wmi-lite (~> 1.0)
-    pastel (0.7.4)
-      equatable (~> 0.6)
+    pastel (0.8.0)
       tty-color (~> 0.5)
     pedump (0.6.2)
       awesome_print
@@ -217,7 +214,7 @@ GEM
     rainbow (3.0.0)
     retryable (3.0.5)
     ruby-progressbar (1.11.0)
-    rubyntlm (0.6.2)
+    rubyntlm (0.6.3)
     rubyzip (2.3.0)
     sawyer (0.8.2)
       addressable (>= 2.3.5)
@@ -226,9 +223,9 @@ GEM
     solve (4.0.3)
       molinillo (~> 0.6)
       semverse (>= 1.1, < 4.0)
-    strings (0.1.8)
-      strings-ansi (~> 0.1)
-      unicode-display_width (~> 1.5)
+    strings (0.2.1)
+      strings-ansi (~> 0.2)
+      unicode-display_width (>= 1.5, < 3.0)
       unicode_utils (~> 1.4)
     strings-ansi (0.2.0)
     syslog-logger (1.6.8)
@@ -259,38 +256,37 @@ GEM
     train-winrm (0.2.6)
       winrm (~> 2.0)
       winrm-fs (~> 1.0)
-    tty-box (0.5.0)
-      pastel (~> 0.7.2)
-      strings (~> 0.1.6)
+    tty-box (0.7.0)
+      pastel (~> 0.8)
+      strings (~> 0.2.0)
       tty-cursor (~> 0.7)
-    tty-color (0.5.1)
+    tty-color (0.6.0)
     tty-cursor (0.7.1)
-    tty-prompt (0.21.0)
-      necromancer (~> 0.5.0)
-      pastel (~> 0.7.0)
-      tty-reader (~> 0.7.0)
-    tty-reader (0.7.0)
+    tty-prompt (0.23.1)
+      pastel (~> 0.8)
+      tty-reader (~> 0.8)
+    tty-reader (0.9.0)
       tty-cursor (~> 0.7)
-      tty-screen (~> 0.7)
-      wisper (~> 2.0.0)
+      tty-screen (~> 0.8)
+      wisper (~> 2.0)
     tty-screen (0.8.1)
-    unicode-display_width (1.7.0)
+    unicode-display_width (2.0.0)
     unicode_utils (1.4.0)
     uuidtools (2.1.5)
-    winrm (2.3.4)
+    winrm (2.3.6)
       builder (>= 2.1.2)
       erubi (~> 1.8)
       gssapi (~> 1.2)
       gyoku (~> 1.0)
       httpclient (~> 2.2, >= 2.2.0.2)
       logging (>= 1.6.1, < 3.0)
       nori (~> 2.0)
-      rubyntlm (~> 0.6.0, >= 0.6.1)
-    winrm-elevated (1.2.1)
+      rubyntlm (~> 0.6.0, >= 0.6.3)
+    winrm-elevated (1.2.3)
       erubi (~> 1.8)
       winrm (~> 2.0)
       winrm-fs (~> 1.0)
-    winrm-fs (1.3.4)
+    winrm-fs (1.3.5)
       erubi (~> 1.8)
       logging (>= 1.6.1, < 3.0)
       rubyzip (~> 2.0)