feat(schematics): add v9 migration rules for tree

[hsuanxyz]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Application (the showcase website) / infrastructure changes
[x] Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

[codecov]

Codecov Report

Merging #4602 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #4602   +/-   ##
=======================================
  Coverage   91.41%   91.41%           
=======================================
  Files         549      549           
  Lines       13760    13760           
  Branches     2050     2122   +72     
=======================================
  Hits        12579    12579           
  Misses        717      717           
  Partials      464      464           

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[vthinkxie]

lgtm