[backend] Fix cyclic relation bug in tasks and notes

[Goumies]

Proposed changes

• Remove Tasks and Notes from Investigation knowledge based on Container
• Remove Tasks and Notes from Investigation knowledge to Container

Related issues

• [Case to Invest to Case] Cyclic relationship bug #4911

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant uses case
• I added/update the relevant documentation (either on github or on notion)
• Where necessary I refactored code to improve the overall quality

Further comments

If this is a relatively large or complex change, kick off the discussion by explaining why you chose the solution you did and what alternatives you considered, etc...

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (58ae024) 0.00% compared to head (fd00dfd) 87.27%.
Report is 7 commits behind head on master.

❗ Current head fd00dfd differs from pull request most recent head 8fcacbc. Consider uploading reports for the commit 8fcacbc to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #4920       +/-   ##
===========================================
+ Coverage        0   87.27%   +87.27%     
===========================================
  Files           0        3        +3     
  Lines           0      220      +220     
  Branches        0       55       +55     
===========================================
+ Hits            0      192      +192     
- Misses          0       28       +28     

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[marieflorescontact]

Locally tested ok 👌