fix(docs): fix lint errors on onConsoleLog example (vitest-dev#4116)

Author: marcelobotega

docs/config/index.md

@@ -1634,9 +1634,8 @@ import { defineConfig } from 'vitest/config'
 export default defineConfig({
   test: {
     onConsoleLog(log: string, type: 'stdout' | 'stderr'): boolean | void {
-      if (log === 'message from third party library' && type === 'stdout') {
-        return false;
-      }
+      if (log === 'message from third party library' && type === 'stdout')
+        return false
     },
   },
 })