ci: github worflow新增push PKU repository

[ZihanChen821]

改动：

1. 在现有的workflow下，在Test, Build and Publish Projects内的build images job里新增使用账号密码docker login 到PKU_CR：mirrors.eecser.com，此账号密码保存在github secrets内，key分别为PKUREGISTRY_USERNAME和PKUREGISTRY_PASSWORD。
2. 将build好的image上传至mirrors.eecser.com/pkuhpc-icode/xxx: {tag}下
3. 通过mirror.pku.edu.cn/pkuhpc-icode/xxx: {tag}可以拉到最新push到mirrors.eecser.com/pkuhpc-icode/xxx: {tag}的镜像

自测：
已在58集群拉取到该image

关于push的速度问题： 经测试偶尔时间达到将近十多分钟，可以考虑后续只对release或者合master的image 推到该仓库，其他pr的image继续使用github的仓库即可。

[changeset-bot]

⚠️ No Changeset found

Latest commit: fe3b481

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[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (99e2b08) 65.12% compared to head (fe3b481) 65.12%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #708   +/-   ##
=======================================
  Coverage   65.12%   65.12%           
=======================================
  Files         129      129           
  Lines        3773     3773           
  Branches      500      500           
=======================================
  Hits         2457     2457           
  Misses       1249     1249           
  Partials       67       67           

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[ddadaal]

push速度的问题影响到 #710 (comment)