fix: move Intermarché / Les Mousquetaires import to producers platform

[stephanegigandet]

A few things to note:

• Intermarché wants us to remove the files from the SFTP as we process them, thus we move them to a backup folder, so that we can reprocess them if needed
• The files are named in DD-MM-YYYY format and sometimes we get multiple months uploaded at the same second, we rename them to YYYY-MM-DD so that can import them in order
• The CSV files are in OFF format, but they have a byte order mark which breaks Text::CSV, so we remove the mark first

[codecov-commenter]

Codecov Report

Attention: 8 lines in your changes are missing coverage. Please review.

Comparison is base (7fb9bba) 48.84% compared to head (25bf166) 49.01%.
Report is 35 commits behind head on main.

Files	Patch %	Lines
lib/ProductOpener/Import.pm	0.00%	5 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9474      +/-   ##
==========================================
+ Coverage   48.84%   49.01%   +0.16%     
==========================================
  Files          66       66              
  Lines       20380    20430      +50     
  Branches     4891     4904      +13     
==========================================
+ Hits         9955    10013      +58     
+ Misses       9166     9149      -17     
- Partials     1259     1268       +9     

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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

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[alexgarel]

Thanks !