Automated cherry pick of #2046: autotest step input support point param

[erda-bot]

Cherry pick of #2046 on release/1.3.

Squashed commit message:

commit 731f782753b9cae01b8980f3754d847ffd957cf9
Author: chengjoey <30427474+chengjoey@users.noreply.github.com>
Date:   Thu Sep 23 15:40:09 2021 +0800

    autotest step input support point param (#2046)

---

What type of this PR

Add one of the following kinds:
/kind bug

What this PR does / why we need it:

autotest step input support point param

Which issue(s) this PR fixes:

• Fixes #your-issue_number
• Erda Cloud Issue Link

Specified Reviewers:

/assign @your-reviewer

ChangeLog

Language	Changelog
🇺🇸 English	autotest step input support point param
🇨🇳 中文	支持自动化测试输入点

Need cherry-pick to release versions?

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.

[sfwn]

/approve