test(asyncapi-plugin): add Vitest configuration with increased test timeout

Author: radist2s

packages/asyncapi-typescript-plugin/vitest.config.ts

@@ -0,0 +1,12 @@
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  test: {
+    // Increased timeout is required because AsyncAPI schema parsing with @asyncapi/parser
+    // is CPU-intensive and slow on CI runners (typically 2 vCPU GitHub Actions).
+    // The first few tests pay the full cost of parser initialization (~4-5s on CI),
+    // while subsequent tests benefit from internal caching (~600ms).
+    // Default Vitest timeout (5000ms) is too tight for CI, causing flaky failures.
+    testTimeout: 30_000,
+  },
+});