fix: artifact v4 upload above 8MB

[ChristopherHX]

Multiple chunks are uploaded with type "block" without using "appendBlock", my .net Implementation didn't have different handling for these upload type and this solves the issue for act itself

8MB seems to be the chunk size

Closes #2351
Closes #2371

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ EDITORCONFIG	editorconfig-checker	1		0	0.01s
✅ REPOSITORY	gitleaks	yes		no	2.32s
✅ REPOSITORY	git_diff	yes		no	0.01s
✅ REPOSITORY	grype	yes		no	8.21s
✅ REPOSITORY	secretlint	yes		no	1.0s
✅ REPOSITORY	trivy-sbom	yes		no	0.49s
✅ REPOSITORY	trufflehog	yes		no	4.36s

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[codecov]

Codecov Report

Attention: Patch coverage is 77.77778% with 2 lines in your changes missing coverage. Please review.

Project coverage is 76.62%. Comparing base (5a80a04) to head (0ff30c5).
Report is 105 commits behind head on master.

Files with missing lines	Patch %	Lines
pkg/artifacts/arifacts_v4.go	77.77%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #2402       +/-   ##
===========================================
+ Coverage   61.56%   76.62%   +15.06%     
===========================================
  Files          53       62        +9     
  Lines        9002     8164      -838     
===========================================
+ Hits         5542     6256      +714     
+ Misses       3020     1343     -1677     
- Partials      440      565      +125     

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[ChristopherHX]

gitea still has problems in this case, but it could be act doesn't have shown this issue because of less database acceses

Investigating using the blocklist at least for gitea

[ChristopherHX]

I don't have any plans for further improvements like done for Gitea in act.
I'm removing the draft status as this can make uploads above 8MB more likely a success, but potentially not always.