chore(deps-dev): bump @types/node from 14.14.3 to 15.9.0

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 14.14.3 to 15.9.0.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

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

Author: dependabot-preview[bot]

package.json

@@ -74,7 +74,7 @@
     "@types/jasmine": "~3.6.8",
     "@types/jasminewd2": "~2.0.9",
     "@types/mocha": "^8.2.2",
-    "@types/node": "~14.14.3",
+    "@types/node": "~15.9.0",
     "@types/webdriverio": "^5.0.0",
     "chai": "^4.3.4",
     "chai-as-promised": "^7.1.1",

yarn.lock

@@ -1307,10 +1307,10 @@
   resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-8.2.2.tgz#91daa226eb8c2ff261e6a8cbf8c7304641e095e0"
   integrity sha512-Lwh0lzzqT5Pqh6z61P3c3P5nm6fzQK/MMHl9UKeneAeInVflBSz1O2EkX6gM6xfJd7FBXBY5purtLx7fUiZ7Hw==
 
-"@types/node@*", "@types/node@~14.14.3":
-  version "14.14.3"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.14.3.tgz#e1c09064121f894baaad2bd9f12ce4a41bffb274"
-  integrity sha512-33/L34xS7HVUx23e0wOT2V1qPF1IrHgQccdJVm9uXGTB9vFBrrzBtkQymT8VskeKOxjz55MSqMv0xuLq+u98WQ==
+"@types/node@*", "@types/node@~15.9.0":
+  version "15.9.0"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-15.9.0.tgz#0b7f6c33ca5618fe329a9d832b478b4964d325a8"
+  integrity sha512-AR1Vq1Ei1GaA5FjKL5PBqblTZsL5M+monvGSZwe6sSIdGiuu7Xr/pNwWJY+0ZQuN8AapD/XMB5IzBAyYRFbocA==
 
 "@types/node@^10.12.18":
   version "10.14.13"