[backend] Taxii feed cursor should be reset when data from is changed on UI (#8463)

[aHenryJard]

Proposed changes

Related issues

• closes Taxii feed: when updating feed to change starting date, the cursor should be reset #8463

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant uses case (coverage and e2e)
• I added/update the relevant documentation (either on github or on notion)
• Where necessary I refactored code to improve the overall quality

Further comments

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.30%. Comparing base (11067c2) to head (84a8e19).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #8844   +/-   ##
=======================================
  Coverage   66.29%   66.30%           
=======================================
  Files         597      597           
  Lines       60976    60979    +3     
  Branches     6266     6270    +4     
=======================================
+ Hits        40427    40433    +6     
+ Misses      20549    20546    -3     

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