build(deps-dev): bump @rollup/plugin-node-resolve from 15.1.0 to 15.2.1

Bumps [@rollup/plugin-node-resolve](https://github.com/rollup/plugins/tree/HEAD/packages/node-resolve) from 15.1.0 to 15.2.1.
- [Changelog](https://github.com/rollup/plugins/blob/master/packages/node-resolve/CHANGELOG.md)
- [Commits](https://github.com/rollup/plugins/commits/node-resolve-v15.2.1/packages/node-resolve)

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

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

package.json

@@ -92,7 +92,7 @@
     "@popperjs/core": "^2.11.8",
     "@rollup/plugin-babel": "^6.0.3",
     "@rollup/plugin-commonjs": "^25.0.3",
-    "@rollup/plugin-node-resolve": "^15.1.0",
+    "@rollup/plugin-node-resolve": "^15.2.1",
     "@rollup/plugin-replace": "^5.0.2",
     "autoprefixer": "^10.4.14",
     "bundlewatch": "^0.3.3",