Automated cherry pick of #3419: check if an addon that is not a platform exists when the project is deleted

[erda-bot]

Cherry pick of #3419 on release/1.5.

Squashed commit message:

commit 1bdba36b6adc8224be56b69ef64ac30da8342659
Author: littlejian <17816869670@163.com>
Date:   Wed Dec 22 11:40:48 2021 +0800

    check if an addon that is not a platform exists when the project is deleted (#3419)
    
    * check if an addon that is not a platform exists
    
    * add comment

---

What type of this PR

Add one of the following kinds:
/kind polish

What this PR does / why we need it:

check if an addon that is not a platform exists when the project is deleted

Which issue(s) this PR fixes:

• Fixes #your-issue_number
• Erda Cloud Issue Link

Specified Reviewers:

/assign @Effet

ChangeLog

Language	Changelog
🇺🇸 English
🇨🇳 中文

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.

[codecov]

Codecov Report

Merging #3450 (1bdba36) into release/1.5 (99c4b0a) will increase coverage by 0.01%.
The diff coverage is 66.66%.

@@               Coverage Diff               @@
##           release/1.5    #3450      +/-   ##
===============================================
+ Coverage        18.18%   18.19%   +0.01%     
===============================================
  Files             1411     1411              
  Lines           144995   145010      +15     
===============================================
+ Hits             26362    26389      +27     
+ Misses          115967   115933      -34     
- Partials          2666     2688      +22     

Impacted Files	Coverage Δ
modules/core-services/services/project/project.go	17.80% <66.66%> (+2.03%)	⬆️