fix(deps): update dependency @types/js-yaml to ^4.0.9 (#1486)

[![Mend Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [@types/js-yaml](https://togithub.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/js-yaml) ([source](https://togithub.com/DefinitelyTyped/DefinitelyTyped)) | [`^4.0.7` -> `^4.0.9`](https://renovatebot.com/diffs/npm/@types%2fjs-yaml/4.0.7/4.0.9) | [![age](https://developer.mend.io/api/mc/badges/age/npm/@types%2fjs-yaml/4.0.9?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@types%2fjs-yaml/4.0.9?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@types%2fjs-yaml/4.0.7/4.0.9?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@types%2fjs-yaml/4.0.7/4.0.9?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://developer.mend.io/github/googleapis/gapic-generator-typescript).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4xOS4yIiwidXBkYXRlZEluVmVyIjoiMzcuNDYuMCIsInRhcmdldEJyYW5jaCI6Im1haW4ifQ==-->

package.json

@@ -41,7 +41,7 @@
     "ts-test-application": "mocha bazel-bin/typescript/test/test-application/test-ts --timeout 600000"
   },
   "dependencies": {
-    "@types/js-yaml": "^4.0.7",
+    "@types/js-yaml": "^4.0.9",
     "js-yaml": "^4.1.0",
     "long": "^5.2.3",
     "nunjucks": "^3.2.4",

yarn.lock

@@ -455,10 +455,10 @@
   resolved "https://registry.npmjs.org/@types/caseless/-/caseless-0.12.4.tgz"
   integrity sha512-2in/lrHRNmDvHPgyormtEralhPcN3An1gLjJzj2Bw145VBxkQ75JEXW6CTdMAwShiHQcYsl2d10IjQSdJSJz4g==
 
-"@types/js-yaml@^4.0.7":
-  version "4.0.7"
-  resolved "https://registry.npmjs.org/@types/js-yaml/-/js-yaml-4.0.7.tgz"
-  integrity sha512-RJZP9WAMMr1514KbdSXkLRrKvYQacjr1+HWnY8pui/uBTBoSgD9ZGR17u/d4nb9NpERp0FkdLBe7hq8NIPBgkg==
+"@types/js-yaml@^4.0.9":
+  version "4.0.9"
+  resolved "https://registry.npmjs.org/@types/js-yaml/-/js-yaml-4.0.9.tgz"
+  integrity sha512-k4MGaQl5TGo/iipqb2UDG2UwjXziSWkh0uysQelTlJpX1qGlpUZYm8PnO4DxG1qBomtJUdYJ6qR6xdIah10JLg==
 
 "@types/json-schema@^7.0.9":
   version "7.0.12"