reset the testTimeout to 5 seconds and change it directly in the test

packages/mermaid/src/mermaid.spec.ts

@@ -89,7 +89,7 @@ describe('when using mermaid and ', () => {
       ).resolves.not.toThrow();
       // should still render, even if lazyLoadedDiagrams fails
       expect(mermaidAPI.render).toHaveBeenCalled();
-    });
+    }, 20_000);
 
     it('should defer diagram load based on parameter', async () => {
       let loaded = false;

vite.config.ts

@@ -24,7 +24,6 @@ export default defineConfig({
       reportsDirectory: './coverage/vitest',
       exclude: ['**/node_modules/**', '**/tests/**', '**/__mocks__/**'],
     },
-    testTimeout: 10000,
   },
   build: {
     /** If you set esmExternals to true, this plugins assumes that