onDidClasspathUpdate failing intermittently

In test/standard-mode-suite/publicApi.test.ts. Also discussed during our migration in https://github.com/redhat-developer/vscode-java/pull/2031

1) Public APIs - Standard
       onDidClasspathUpdate should work:
     Error: Timeout of 60000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (/home/runner/work/vscode-java/vscode-java/out/test/standard-mode-suite/publicApi.test.js)
  	at listOnTimeout (internal/timers.js:554:17)
  	at processTimers (internal/timers.js:497:7)

I don't think it's strictly related to how fast the builder is, because I can't reproduce locally consistently by just limiting the process to 10% of CPU but I get the impression it happens on weaker builders under Github Actions. We had similar issues in https://github.com/redhat-developer/vscode-quarkus/issues/379 and increasing the timeouts worked, but I wonder if something else is happening here.

从 test/standard-mode-suite/publicApi.test.ts 开始，重现 issue 中所示的 onDidClasspathUpdate 间歇性 timeout。查看 pull request 2031 中关于迁移的讨论以及相关的 vscode-quarkus issue 379，然后确定该失败是否需要修改 timeout 或进行其他修复；完成的标准是 test 能够在 GitHub Actions 中可靠地完成。