Bump volto-subfooter from 2.0.0 to 3.0.0

Bumps [volto-subfooter](https://github.com/collective/volto-subfooter) from 2.0.0 to 3.0.0.
- [Release notes](https://github.com/collective/volto-subfooter/releases)
- [Changelog](https://github.com/collective/volto-subfooter/blob/main/CHANGELOG.md)
- [Commits](collective/volto-subfooter@v2.0.0...v3.0.0)

---
updated-dependencies:
- dependency-name: volto-subfooter
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -35,7 +35,7 @@
     "volto-google-analytics": "2.0.0",
     "volto-siteinfo": "1.0.1",
     "volto-subblocks": "2.0.0",
-    "volto-subfooter": "2.0.0"
+    "volto-subfooter": "3.0.0"
   },
   "peerDependencies": {
     "@plone/volto": ">= 16.6.0 < 17.0.0"