feat(yamllint): add .kitchen/ directory to paths to be ignored

* YAML files are copied there during local Kitchen testing

Author: myii

ssf/defaults.yaml

@@ -176,6 +176,7 @@ ssf_node_anchors:
               - 'node_modules/'
             additional_ssf:
               - 'test/**/states/**/*.sls'
+              - '.kitchen/'
             additional: []
           yaml-files:
             default:

ssf/files/default/.yamllint

@@ -17,13 +17,14 @@ extends: {{ yamllint.extends }}
 # Files to ignore completely
 # 1. All YAML files under directory `node_modules/`, introduced during the Travis run
 # 2. Any SLS files under directory `test/`, which are actually state files
+# 3. Any YAML files under directory `.kitchen/`, introduced during local testing
 {%- if semrel_formula == 'ssf' %}
-# 3. All Jinja templates under `ssf/files/` (result in `yamllint` syntax errors)
+# 4. All Jinja templates under `ssf/files/` (result in `yamllint` syntax errors)
 #    Not disabling via. `*.yml` since we may end up with non-Jinja YAML files here
 {%- elif semrel_formula == 'mysql' %}
-# 3. Any YAML files using Jinja (result in `yamllint` syntax errors)
+# 4. Any YAML files using Jinja (result in `yamllint` syntax errors)
 {%- elif semrel_formula in ['postgres', 'salt'] %}
-# 3. All YAML files heavily reliant on Jinja; these can be tackled in a subsequent PR
+# 4. All YAML files heavily reliant on Jinja; these can be tackled in a subsequent PR
 {%- endif %}
 {%- set yl_ignores = {'ignore':
   yamllint.ignore.default +