Bump kitchen-docker from 2.6.0 to 2.7.0

Bumps [kitchen-docker](https://github.com/portertech/kitchen-docker) from 2.6.0 to 2.7.0.
- [Release notes](https://github.com/portertech/kitchen-docker/releases)
- [Changelog](https://github.com/test-kitchen/kitchen-docker/blob/master/CHANGELOG.md)
- [Commits](test-kitchen/kitchen-docker@v2.6.0...v2.7.0)

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

Author: dependabot-support

Gemfile.lock

@@ -185,7 +185,7 @@ GEM
     jaro_winkler (1.5.1)
     jmespath (1.4.0)
     json (2.1.0)
-    kitchen-docker (2.6.0)
+    kitchen-docker (2.7.0)
       test-kitchen (>= 1.0.0)
     kitchen-ec2 (2.2.2)
       aws-sdk (~> 2)
@@ -217,12 +217,12 @@ GEM
     mixlib-cli (1.7.0)
     mixlib-config (2.2.6)
       tomlrb
-    mixlib-install (3.10.0)
+    mixlib-install (3.11.2)
       mixlib-shellout
       mixlib-versioning
       thor
     mixlib-log (1.7.1)
-    mixlib-shellout (2.3.2)
+    mixlib-shellout (2.4.0)
     mixlib-versioning (1.2.2)
     molinillo (0.6.5)
     multi_json (1.13.1)
@@ -354,7 +354,7 @@ GEM
       logify (~> 0.2)
     syslog-logger (1.6.8)
     systemu (2.6.5)
-    test-kitchen (1.22.0)
+    test-kitchen (1.23.0)
       mixlib-install (~> 3.6)
       mixlib-shellout (>= 1.2, < 3.0)
       net-scp (~> 1.1)
@@ -390,7 +390,7 @@ GEM
     winrm-elevated (1.1.0)
       winrm (~> 2.0)
       winrm-fs (~> 1.0)
-    winrm-fs (1.2.0)
+    winrm-fs (1.2.1)
       erubis (~> 2.7)
       logging (>= 1.6.1, < 3.0)
       rubyzip (~> 1.1)