build(deps): bump react-aria from 3.20.0 to 3.21.0 (#1317)

Bumps [react-aria](https://github.com/adobe/react-spectrum) from 3.20.0 to 3.21.0.
- [Release notes](https://github.com/adobe/react-spectrum/releases)
- [Commits](https://github.com/adobe/react-spectrum/compare/react-aria@3.20.0...react-aria@3.21.0)

---
updated-dependencies:
- dependency-name: react-aria
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

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

package.json

@@ -89,7 +89,7 @@
         "pyodide": "0.21.3",
         "react": "^16.13.1",
         "react-app-polyfill": "^3.0.0",
-        "react-aria": "^3.20.0",
+        "react-aria": "^3.21.0",
         "react-complex-tree": "^1.1.11",
         "react-dev-utils": "^12.0.1",
         "react-dom": "^16.13.1",