Chore(deps): Bump chroma-js from 2.4.2 to 2.6.0

Bumps [chroma-js](https://github.com/gka/chroma.js) from 2.4.2 to 2.6.0.
- [Release notes](https://github.com/gka/chroma.js/releases)
- [Changelog](https://github.com/gka/chroma.js/blob/main/CHANGELOG.md)
- [Commits](https://github.com/gka/chroma.js/commits/v2.6.0)

---
updated-dependencies:
- dependency-name: chroma-js
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -45,7 +45,7 @@
     "@nextcloud/router": "^3.0.1",
     "@nextcloud/vue": "^8.15.1",
     "blueimp-md5": "^2.19.0",
-    "chroma-js": "^2.4.2",
+    "chroma-js": "^2.6.0",
     "dompurify": "^3.1.6",
     "lodash": "^4.17.21",
     "markdown-it": "^14.1.0",