chore(deps): update dependency sinon-chai to version 3.3.0 🌟 (#3303)

This PR contains the following updates:

| Package | Type | Update | Change | References |
|---|---|---|---|---|
| sinon-chai | devDependencies | minor | `3.2.0` -> `3.3.0` | [source](https://togithub.com/domenic/sinon-chai) |
| sinon-chai | devDependencies | major | `2.14.0` -> `3.3.0` | [source](https://togithub.com/domenic/sinon-chai) |

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### Release Notes

<details>
<summary>domenic/sinon-chai</summary>

### [`v3.3.0`](https://togithub.com/domenic/sinon-chai/releases/3.3.0)

[Compare Source](https://togithub.com/domenic/sinon-chai/compare/v3.2.0...3.3.0)

Added support for Sinon v7.x ([@&#8203;JoeTheFkingFrypan](https://togithub.com/JoeTheFkingFrypan), [#&#8203;131](https://togithub.com/domenic/sinon-chai/issues/131))

</details>

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packages/https-proxy/package.json

@@ -27,7 +27,7 @@
     "request-promise": "3.0.0",
     "sinon": "1.17.7",
     "sinon-as-promised": "4.0.3",
-    "sinon-chai": "2.14.0",
+    "sinon-chai": "3.3.0",
     "supertest": "1.2.0",
     "supertest-as-promised": "3.2.0"
   },