Update test-runner.md

Make code snippet consistent with the others on the page. Typically yarn is shown before npm, so this change will make the code snippet consistent with the rest.

docs/writing-tests/test-runner.md

@@ -43,8 +43,9 @@ Start your Storybook with:
 <CodeSnippets
   paths={[
     'angular/storybook-run-dev.with-builder.js.mdx',
-    'common/storybook-run-dev.npm.js.mdx',
     'common/storybook-run-dev.yarn.js.mdx',
+    'common/storybook-run-dev.npm.js.mdx',
+
   ]}
 />
 
@@ -302,4 +303,4 @@ As the test runner is based on Playwright, you might need to use specific docker
 - [Accessibility tests](./accessibility-testing.md) for accessibility
 - [Interaction tests](./interaction-testing.md) for user behavior simulation
 - [Snapshot tests](./snapshot-testing.md) for rendering errors and warnings
-- [Import stories in other tests](./importing-stories-in-tests.md) for other tools
+- [Import stories in other tests](./importing-stories-in-tests.md) for other tools