Bump rollup from 2.12.0 to 2.15.0

Bumps [rollup](https://github.com/rollup/rollup) from 2.12.0 to 2.15.0.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.12.0...v2.15.0)

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

package-lock.json

@@ -11079,9 +11079,9 @@
       }
     },
     "rollup": {
-      "version": "2.12.0",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.12.0.tgz",
-      "integrity": "sha512-vKwc/xFkZGM9DRai3Eztpr/4g0yYDgNKVq8tLXhq/aSLbR+/EVL6rTjEW9bgWgeYEIKoN66/5w2Bjv1gzyHR/w==",
+      "version": "2.15.0",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.15.0.tgz",
+      "integrity": "sha512-HAk4kyXiV5sdNDnbKWk5zBPnkX/DAgx09Kbp8rRIRDVsTUVN3vnSowR7ZHkV6/lAiE6c2TQ8HtYb72aCPGW4Jw==",
       "dev": true,
       "requires": {
         "fsevents": "~2.1.2"