fix: 等待 2 分钟后再触发 registry_update

[eya46]

先处理pr再触发registry更新

有时已经在进行商店更新，但是pr还未合并，nonebot仓库的{module_name}.json未写入新的插件信息，从而导致测试失败
如果没有其它pr触发，就无法写入到 nonebot/registry，导致丢失插件

https://github.com/nonebot/registry/actions/runs/7675902162/job/20922746791

...
  File "/home/runner/work/registry/registry/src/utils/store_test/store.py", line 96, in test_plugins
    test_plugins = [(key, self._store_plugins[key])]
KeyError: 'nonebot-plugin-nezha:nonebot_plugin_nezha'

[he0119]

诶，不对啊，handle_pr_close 本来就是 pr 关闭时才会运行的。这段代码运行时，PR 已经合并。所以大概率还是缓存问题吧。

我突然想到这里是不是可以设置什么 no-cache 之类的？

noneflow/examples/store-test.yml

Line 50 in 7ede4f5

curl -sSL https://raw.githubusercontent.com/nonebot/registry/results/results.json -o plugin_test/store/previous_results.json

[eya46]

艹，确实，PullRequestClosed，太怪了

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (7ede4f5) 97.42% compared to head (1cc3537) 97.42%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #197   +/-   ##
=======================================
  Coverage   97.42%   97.42%           
=======================================
  Files          17       17           
  Lines        1009     1011    +2     
=======================================
+ Hits          983      985    +2     
  Misses         26       26           

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