Bump @types/node from 15.6.1 to 15.9.0

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 15.6.1 to 15.9.0.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

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

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

package-lock.json

@@ -2554,9 +2554,9 @@
       "dev": true
     },
     "@types/node": {
-      "version": "15.6.1",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-15.6.1.tgz",
-      "integrity": "sha512-7EIraBEyRHEe7CH+Fm1XvgqU6uwZN8Q7jppJGcqjROMT29qhAuuOxYB1uEY5UMYQKEmA5D+5tBnhdaPXSsLONA==",
+      "version": "15.9.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-15.9.0.tgz",
+      "integrity": "sha512-AR1Vq1Ei1GaA5FjKL5PBqblTZsL5M+monvGSZwe6sSIdGiuu7Xr/pNwWJY+0ZQuN8AapD/XMB5IzBAyYRFbocA==",
       "dev": true
     },
     "@types/normalize-package-data": {

package.json

@@ -32,7 +32,7 @@
     "typed-rest-client": "^1.8.4"
   },
   "devDependencies": {
-    "@types/node": "^15.6.1",
+    "@types/node": "^15.9.0",
     "@types/jest": "^26.0.23",
     "@typescript-eslint/parser": "^3.10.1",
     "@zeit/ncc": "^0.22.3",