chore(deps): update dependency @types/chai to v4.2.21

Author: renovate-bot

package.json

@@ -11,7 +11,7 @@
     "@commitlint/travis-cli": "8.3.5",
     "@mike-works/js-lib-renovate-config": "2.0.0",
     "@mike-works/workshop-semantic-release-config": "1.0.0",
-    "@types/chai": "4.2.18",
+    "@types/chai": "4.2.21",
     "@types/mocha": "5.2.7",
     "@types/node": "12.20.15",
     "@typescript-eslint/eslint-plugin": "2.34.0",

yarn.lock

@@ -1188,10 +1188,10 @@
     lodash "^4.17.4"
     read-pkg-up "^6.0.0"
 
-"@types/[email protected].18":
-  version "4.2.18"
-  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.18.tgz#0c8e298dbff8205e2266606c1ea5fbdba29b46e4"
-  integrity sha512-rS27+EkB/RE1Iz3u0XtVL5q36MGDWbgYe7zWiodyKNUnthxY0rukK5V36eiUCtCisB7NN8zKYH6DO2M37qxFEQ==
+"@types/[email protected].21":
+  version "4.2.21"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.21.tgz#9f35a5643129df132cf3b5c1ec64046ea1af0650"
+  integrity sha512-yd+9qKmJxm496BOV9CMNaey8TWsikaZOwMRwPHQIjcOJM9oV+fi9ZMNw3JsVnbEEbo2gRTDnGEBv8pjyn67hNg==
 
 "@types/color-name@^1.1.1":
   version "1.1.1"