build(deps-dev): bump @types/node from 15.3.0 to 15.6.0 (#242)

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 15.3.0 to 15.6.0.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -37,7 +37,7 @@
     "tmp": "^0.2.1"
   },
   "devDependencies": {
-    "@types/node": "^15.3.0",
+    "@types/node": "^15.6.0",
     "@types/uuid": "^8.3.0",
     "@typescript-eslint/eslint-plugin": "^4.24.0",
     "@typescript-eslint/parser": "^4.22.1",