[backend] Fixed issue with skip char line parameter in csv mapper (#5764)

[JeremyCloarec]

Proposed changes

The issue related to this PR mentioned a parsing error when parsing a csv file with the skip char line character at the start of a csv field line.
The error came from the fact that we were trying to skip the lines after the parse was done, but the csv couldn't be parsed because it wasn't recognized as a proper csv file in the raw parser.
I moved the handling of the skip line char to the native parser, using the comment and comment_no_infix options.

Related issues

• CSV Mapper skip char, not working when csv fields are surrounded by double quote #5764

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

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (a42bf77) 65.44% compared to head (d3544f4) 65.82%.
Report is 3 commits behind head on master.

Files	Patch %	Lines
...-platform/opencti-graphql/src/parser/csv-parser.ts	80.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5962      +/-   ##
==========================================
+ Coverage   65.44%   65.82%   +0.38%     
==========================================
  Files         539      539              
  Lines       63055    63060       +5     
  Branches     5052     5509     +457     
==========================================
+ Hits        41267    41512     +245     
+ Misses      21788    21548     -240     

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