ci: grant contents:write for release asset upload

[erwan-joly]

Same fix as NosCore.Packets#441 and NosCore.ParserInputGenerator. Ensures GITHUB_TOKEN has release-write scope.

Summary by CodeRabbit

• Chores
  • Updated GitHub Actions workflow permissions to improve automated release publishing.

[coderabbitai]

Caution

Review failed

Pull request was closed or merged during review

Walkthrough

The pull request adds job-scoped GitHub Actions permissions to the dotnet workflow, specifically granting contents: write access to enable the release upload step to write to repository release contents.

Changes

Cohort / File(s)	Summary
GitHub Actions Workflow .github/workflows/dotnet.yml	Adds job-scoped contents: write permission to enable write access for release asset upload operations.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'ci: grant contents:write for release asset upload' directly and concisely describes the main change: adding GitHub Actions permissions for release asset uploads.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch ci/release-permissions

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