build(deps-dev): bump @types/chai from 3.5.2 to 4.2.15

Bumps [@types/chai](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/chai) from 3.5.2 to 4.2.15.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/chai)

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

package-lock.json

@@ -540,9 +540,9 @@
       "dev": true
     },
     "@types/chai": {
-      "version": "3.5.2",
-      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-3.5.2.tgz",
-      "integrity": "sha1-wRzSgX06QBt7oPWkIPNcVhObHB4=",
+      "version": "4.2.15",
+      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.15.tgz",
+      "integrity": "sha512-rYff6FI+ZTKAPkJUoyz7Udq3GaoDZnxYDEvdEdFZASiA7PoErltHezDishqQiSDWrGxvxmplH304jyzQmjp0AQ==",
       "dev": true
     },
     "@types/color-name": {

package.json

@@ -63,7 +63,7 @@
   },
   "homepage": "https://github.com/dolanmiu/docx#readme",
   "devDependencies": {
-    "@types/chai": "^3.4.35",
+    "@types/chai": "^4.2.15",
     "@types/mocha": "^8.0.0",
     "@types/request-promise": "^4.1.42",
     "@types/shortid": "0.0.29",