chore(deps): replace dependency rollup-plugin-babel with @rollup/plugin-babel 5

Author: renovate[bot]

package-lock.json

@@ -71,7 +71,7 @@
     "react-test-renderer": "^16.4.2",
     "rimraf": "^2.0.0",
     "rollup": "^1.6.0",
-    "rollup-plugin-babel": "4",
+    "@rollup/plugin-babel": "5",
     "rollup-plugin-commonjs": "^10.0.0",
     "rollup-plugin-node-resolve": "^5.0.1",
     "rollup-plugin-replace": "^2.0.0",