Bump ra-test from 3.19.4 to 3.19.12 (#384)

Bumps [ra-test](https://github.com/marmelab/react-admin) from 3.19.4 to 3.19.12.
- [Release notes](https://github.com/marmelab/react-admin/releases)
- [Changelog](https://github.com/marmelab/react-admin/blob/v3.19.12/CHANGELOG.md)
- [Commits](https://github.com/marmelab/react-admin/compare/v3.19.4...v3.19.12)

---
updated-dependencies:
- dependency-name: ra-test
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -19,7 +19,7 @@
     "eslint-plugin-prettier": "^4.2.1",
     "jest-fetch-mock": "^3.0.3",
     "prettier": "^2.2.0",
-    "ra-test": "^3.15.0"
+    "ra-test": "^3.19.12"
   },
   "dependencies": {
     "@emotion/react": "^11.7.1",