Automated cherry pick of #2173: feature: scene set supports parallel in autoTest

[erda-bot]

Cherry pick of #2173 on release/1.3.

Squashed commit message:

commit 3e69231643bb48a708e635723ffe8d6a963d583a
Author: littlejian <17816869670@163.com>
Date:   Fri Oct 15 15:28:05 2021 +0800

    feature: scene set supports parallel in autoTest (#2173)
    
    * feature: scene set supports parallel in autoTest
    
    * add ListTestPlanV2Step api
    
    * update move group
    
    * add split op of render
    
    * fix: add unit test
    
    * add unit test
    
    * add unit test for render
    
    * add migrations
    
    * polish code
    
    * fix: update timeout of Test_initCron

---

What type of this PR

/kind feature

What this PR does / why we need it:

feature: scene set supports parallel in autoTest

Which issue(s) this PR fixes:

自动化测试计划中，场景集支持并行

• Fixes #your-issue_number
• [Erda Cloud Issue Link](paste your link here)

Specified Reviewers:

/assign @sfwn

ChangeLog

Language	Changelog
🇺🇸 English	feature: scene set supports parallel in autoTest
🇨🇳 中文	自动化测试场景集支持并行

Need cherry-pick to release versions?

/cherry-pick release/1.3
Add comment like /cherry-pick release/1.0 when this PR is merged.

For details on the cherry pick process, see the cherry pick requests section under CONTRIBUTING.md.

[erda-bot]

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

[sfwn]

/approve