Update dependencies: glob to 7.1.6, ignore to 5.1.8, markdownlint to …

…0.21.1, rc to 1.2.8, ava to 3.13.0.

package.json

@@ -40,20 +40,20 @@
     "commander": "~6.2.0",
     "deep-extend": "~0.6.0",
     "get-stdin": "~8.0.0",
-    "glob": "~7.1.2",
-    "ignore": "~5.1.4",
+    "glob": "~7.1.6",
+    "ignore": "~5.1.8",
     "js-yaml": "~3.14.0",
     "jsonc-parser": "~2.3.1",
     "lodash.differencewith": "~4.5.0",
     "lodash.flatten": "~4.4.0",
-    "markdownlint": "~0.21.0",
+    "markdownlint": "~0.21.1",
     "markdownlint-rule-helpers": "~0.12.0",
     "minimatch": "~3.0.4",
     "minimist": "~1.2.5",
-    "rc": "~1.2.7"
+    "rc": "~1.2.8"
   },
   "devDependencies": {
-    "ava": "^3.8.1",
+    "ava": "^3.13.0",
     "execa": "^4.1.0",
     "husky": "^4.3.0",
     "tap-growl": "^3.0.0",
@@ -67,7 +67,8 @@
       "no-var": 0,
       "prefer-arrow-callback": 0,
       "promise/prefer-await-to-then": 0,
-      "object-shorthand": 0
+      "object-shorthand": 0,
+      "unicorn/prefer-ternary": 0
     }
   },
   "ava": {