fix: merge-multiple artifacts were broken

[ChristopherHX]

Fixes #2433

I replaced the hardcoded id by a hash code of the name, if you have a better idea let me know.

We don't have a database with actual id's and this seems to be the most trivial fix

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ EDITORCONFIG	editorconfig-checker	1		0	0.01s
✅ REPOSITORY	gitleaks	yes		no	2.36s
✅ REPOSITORY	git_diff	yes		no	0.01s
✅ REPOSITORY	grype	yes		no	9.06s
✅ REPOSITORY	secretlint	yes		no	1.08s
✅ REPOSITORY	trivy-sbom	yes		no	0.11s
✅ REPOSITORY	trufflehog	yes		no	3.25s

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.03%. Comparing base (5a80a04) to head (f82bc1c).
Report is 124 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #2505       +/-   ##
===========================================
+ Coverage   61.56%   75.03%   +13.46%     
===========================================
  Files          53       62        +9     
  Lines        9002    10013     +1011     
===========================================
+ Hits         5542     7513     +1971     
+ Misses       3020     1937     -1083     
- Partials      440      563      +123     

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