fix:default fill config

[wulangcode]

Fixes #1040

Changes proposed in this pull request:

Check mailbox configuration when submitting. Contributor Guide

[magestacks]

我觉得造成 #1040 问题的原因在 cn.hippo4j.config.springboot.starter.support.DynamicThreadPoolPostProcessor#buildExecutorProperties 这个方法里，而不是新创建个获取默认值的方法。

[codecov]

Codecov Report

Base: 27.93% // Head: 27.80% // Decreases project coverage by -0.13% ⚠️

Coverage data is based on head (bfd5b55) compared to base (9bda143).
Patch has no changes to coverable lines.

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #1041      +/-   ##
=============================================
- Coverage      27.93%   27.80%   -0.14%     
+ Complexity       691      688       -3     
=============================================
  Files            241      242       +1     
  Lines           5667     5683      +16     
  Branches         513      513              
=============================================
- Hits            1583     1580       -3     
- Misses          3942     3957      +15     
- Partials         142      146       +4     

Impacted Files	Coverage Δ
...main/java/cn/hippo4j/rpc/support/ResultHolder.java	57.89% <0.00%> (-42.11%)	⬇️
...va/cn/hippo4j/common/api/ThreadPoolCheckAlarm.java	0.00% <0.00%> (ø)
.../core/plugin/impl/TaskRejectNotifyAlarmPlugin.java	81.81% <0.00%> (+4.04%)	⬆️
...core/plugin/impl/TaskTimeoutNotifyAlarmPlugin.java	100.00% <0.00%> (+10.00%)	⬆️

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[wulangcode]

已修改