Automated cherry pick of #2872: gittar add tree search depth config

[erda-bot]

Cherry pick of #2872 on release/1.3.

Squashed commit message:

commit b7bd86ed4d31668729530c6297a950a38356c7d4
Author: kakj <18579115540@163.com>
Date:   Thu Nov 4 19:49:04 2021 +0800

    gittar tree search add depth config (#2872)

---

What type of this PR

/kind feature

What this PR does / why we need it:

The git search interface adds dynamic configuration search depth

Which issue(s) this PR fixes:

• Erda Cloud Issue Link

ChangeLog

Language	Changelog
🇺🇸 English	The git search interface adds dynamic configuration search depth
🇨🇳 中文	git search 接口增加动态配置搜索深度

Need cherry-pick to release versions?

/cherry-pick release/1.4

/cherry-pick release/1.3

[erda-bot]

Automated cherry pick can ONLY be triggered when this PR is MERGED!

[codecov]

Codecov Report

Merging #2881 (b7bd86e) into release/1.3 (f36bf2d) will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff              @@
##           release/1.3    #2881   +/-   ##
============================================
  Coverage        16.17%   16.17%           
============================================
  Files             1215     1215           
  Lines           122317   122317           
============================================
  Hits             19787    19787           
  Misses          100517   100517           
  Partials          2013     2013           

[sfwn]

/approve