chore(deps): update dependency @types/chai to v4.2.21 (#543)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package-lock.json

@@ -54,7 +54,7 @@
   "devDependencies": {
     "@commitlint/cli": "^12.0.1",
     "@commitlint/config-conventional": "^12.0.1",
-    "@types/chai": "4.2.15",
+    "@types/chai": "4.2.21",
     "@types/chai-as-promised": "^7.1.3",
     "@types/minimatch": "^3.0.4",
     "@types/mocha": "^8.2.2",