message: Update .changeset/gold-yaks-join.md
diff: '@backstage/test-utils': patch
  ---
  -The test utility for PluginProvider called MockPluginProvider has been created. It will be handy in the cases when you use
  -\_\_experimentalConfigure in your plugin
  +The test utility for the plugin context called `MockPluginProvider` has been created. It will be handy in the cases when you use
  +`__experimentalConfigure` in your plugin. It is experimental and exported through `@backstage/test-utils/alpha`.
  