Bump @types/node from 14.14.16 to 15.0.0

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 14.14.16 to 15.0.0.
- [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>

package.json

@@ -44,7 +44,7 @@
   "devDependencies": {
     "@types/gulp": "^4.0.7",
     "@types/jest": "^26.0.19",
-    "@types/node": "^14.14.16",
+    "@types/node": "^15.0.0",
     "@types/through2": "^2.0.36",
     "@types/vinyl": "^2.0.4",
     "@types/vinyl-source-stream": "0.0.30",