fix(backend): fix headers of exports

[pYassine]

No description provided.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 90.24390% with 4 lines in your changes missing coverage. Please review.

Project coverage is 66.56%. Comparing base (b1f2df1) to head (a21d739).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
...controllers/export-structure-usagers.controller.ts	90.90%	1 Missing ⚠️
...es/backend/src/usagers/services/usagers.service.ts	85.71%	1 Missing ⚠️
...xlsx-structure-usagers-renderer/applyDateFormat.ts	90.00%	1 Missing ⚠️
...kages/backend/src/util/phone/phoneUtils.service.ts	66.66%	1 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3621      +/-   ##
==========================================
+ Coverage   66.44%   66.56%   +0.11%     
==========================================
  Files         913      913              
  Lines       15043    15051       +8     
  Branches     2080     2078       -2     
==========================================
+ Hits         9996    10018      +22     
+ Misses       4734     4721      -13     
+ Partials      313      312       -1     

Files with missing lines	Coverage Δ
...kend/src/usagers/controllers/usagers.controller.ts	51.00% <100.00%> (+0.33%)	⬆️
.../services/xlsx-structure-usagers-renderer/index.ts	100.00% <100.00%> (ø)
...ure-usagers-renderer/renderStructureUsagersRows.ts	97.77% <100.00%> (+0.27%)	⬆️
...usagers-renderer/tests/FIRST_SHEET_USAGERS.mock.ts	100.00% <ø> (ø)
...controllers/export-structure-usagers.controller.ts	93.87% <90.90%> (-1.37%)	⬇️
...es/backend/src/usagers/services/usagers.service.ts	39.39% <85.71%> (+2.83%)	⬆️
...xlsx-structure-usagers-renderer/applyDateFormat.ts	90.00% <90.00%> (ø)
...kages/backend/src/util/phone/phoneUtils.service.ts	70.96% <66.66%> (-1.45%)	⬇️

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