editoast: replace DbPoolV1 by V2 in views::pathfinding

[hamz2a]

Part of #6980

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 93.10345% with 4 lines in your changes missing coverage. Please review.

Project coverage is 28.06%. Comparing base (7a4590d) to head (1809c66).
Report is 3 commits behind head on dev.

Files	Patch %	Lines
editoast/src/views/pathfinding/mod.rs	88.57%	4 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff            @@
##                dev    #8098   +/-   ##
=========================================
  Coverage     28.05%   28.06%           
  Complexity     2081     2081           
=========================================
  Files          1289     1289           
  Lines        157717   157761   +44     
  Branches       3114     3114           
=========================================
+ Hits          44254    44274   +20     
- Misses       111588   111612   +24     
  Partials       1875     1875           

Flag	Coverage Δ
core	75.19% <ø> (ø)
editoast	70.78% <93.10%> (-0.02%)	⬇️
front	9.90% <ø> (-0.01%)	⬇️
gateway	2.34% <ø> (ø)
railjson_generator	87.49% <ø> (ø)
tests	72.93% <ø> (ø)

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[flomonster]

views::pathfinding will be droped soon. Is it worth it to do this code refactoring?

[hamz2a]

views::pathfinding will be droped soon. Is it worth it to do this code refactoring?

I didn't know that it will be removed soon. I will close the PR.

[hamz2a]

views::pathfinding will be droped soon.