Bump chai and @types/chai

Bumps [chai](https://github.com/chaijs/chai) and [@types/chai](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/chai). These dependencies needed to be updated together.

Updates `chai` from 4.2.0 to 4.3.10
- [Release notes](https://github.com/chaijs/chai/releases)
- [Changelog](https://github.com/chaijs/chai/blob/4.x.x/History.md)
- [Commits](chaijs/chai@4.2.0...v4.3.10)

Updates `@types/chai` from 4.2.14 to 4.3.6
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/chai)

---
updated-dependencies:
- dependency-name: chai
  dependency-type: direct:development
  update-type: version-update:semver-minor
- dependency-name: "@types/chai"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -27,7 +27,7 @@
   },
   "devDependencies": {
     "@iobroker/testing": "^2.2.0",
-    "@types/chai": "^4.2.11",
+    "@types/chai": "^4.3.9",
     "@types/chai-as-promised": "^7.1.7",
     "@types/gulp": "^4.0.16",
     "@types/mocha": "^7.0.2",
@@ -36,7 +36,7 @@
     "@types/sinon": "^9.0.0",
     "@types/sinon-chai": "^3.2.4",
     "axios": "^0.21.1",
-    "chai": "^4.2.0",
+    "chai": "^4.3.10",
     "chai-as-promised": "^7.1.1",
     "eslint": "^7.0.0",
     "gulp": "^4.0.2",