chore(deps-dev): Bump rollup from 2.55.1 to 2.56.2 (#2173)

Bumps [rollup](https://github.com/rollup/rollup) from 2.55.1 to 2.56.2.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v2.55.1...v2.56.2)

---
updated-dependencies:
- dependency-name: rollup
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -56,7 +56,7 @@
     "jasmine": "^3.8.0",
     "markdown-it": "12.2.0",
     "node-fetch": "^2.6.1",
-    "rollup": "^2.55.1",
+    "rollup": "^2.56.2",
     "rollup-plugin-license": "^2.5.0",
     "semantic-release": "^17.4.4",
     "titleize": "^2.1.0",