build(deps-dev): bump @types/node in /token-lending/js (#1822)

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 15.3.0 to 15.6.1.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

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

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

token-lending/js/package-lock.json

@@ -324,9 +324,9 @@
       }
     },
     "@types/node": {
-      "version": "15.3.0",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-15.3.0.tgz",
-      "integrity": "sha512-8/bnjSZD86ZfpBsDlCIkNXIvm+h6wi9g7IqL+kmFkQ+Wvu3JrasgLElfiPgoo8V8vVfnEi0QVS12gbl94h9YsQ=="
+      "version": "15.6.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-15.6.1.tgz",
+      "integrity": "sha512-7EIraBEyRHEe7CH+Fm1XvgqU6uwZN8Q7jppJGcqjROMT29qhAuuOxYB1uEY5UMYQKEmA5D+5tBnhdaPXSsLONA=="
     },
     "@types/prettier": {
       "version": "2.2.3",

token-lending/js/package.json

@@ -47,7 +47,7 @@
     "@types/eslint-plugin-prettier": "^3.1.0",
     "@types/mkdirp": "^1.0.1",
     "@types/mz": "^2.7.3",
-    "@types/node": "^15.3.0",
+    "@types/node": "^15.6.1",
     "@types/prettier": "^2.2.3",
     "@types/rollup-plugin-json": "^3.0.2",
     "@typescript-eslint/eslint-plugin": "^4.24.0",