chore: skip oxc tests on Node 18

Author: sapphi-red

playground/vitest.config.e2e.ts

@@ -1,8 +1,10 @@
 import { resolve } from 'node:path'
-import { defineConfig } from 'vitest/config'
+import { defaultExclude, defineConfig } from 'vitest/config'
 
 const timeout = process.env.PWDEBUG ? Infinity : process.env.CI ? 20_000 : 5_000
 
+const isBelowNode20 = +process.versions.node.split('.')[0] < 20
+
 export default defineConfig({
   resolve: {
     alias: {
@@ -12,6 +14,9 @@ export default defineConfig({
   test: {
     pool: 'forks',
     include: ['./playground/**/*.spec.[tj]s'],
+    exclude: isBelowNode20
+      ? ['__tests__/oxc', ...defaultExclude] // plugin-oxc only supports node >= 20
+      : defaultExclude,
     setupFiles: ['./playground/vitestSetup.ts'],
     globalSetup: ['./playground/vitestGlobalSetup.ts'],
     testTimeout: timeout,