[#173921255] Fix conflict case on UserDataProcessing upsert

[balanza]

The code didn't considered the FAILED status. I reversed the check to look for active statuses (PENDING and WIP) and return conflict in such cases.

[codecov-commenter]

Codecov Report

Merging #98 into master will decrease coverage by 0.07%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #98      +/-   ##
==========================================
- Coverage   84.74%   84.67%   -0.08%     
==========================================
  Files          26       26              
  Lines         767      796      +29     
  Branches       75       79       +4     
==========================================
+ Hits          650      674      +24     
- Misses        113      118       +5     
  Partials        4        4              

Impacted Files	Coverage Δ
UpsertUserDataProcessing/handler.ts	87.01% <100.00%> (-2.58%)	⬇️

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[pagopa-github-bot]

Affected stories

• 🌟 #173921255: Come CIT voglio poter avviare una procedura di DOWNLOAD/DELETE se la precedente è fallita o abortita

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