merge ubuntu workflows

[shimat]

No description provided.

[Copilot]

Pull request overview

This PR consolidates the separate Ubuntu 22.04 and 24.04 GitHub Actions workflows into a single matrix-based Ubuntu workflow and updates the NuGet publishing workflow to pull artifacts from the unified workflow.

Changes:

• Merge Ubuntu 22.04 and 24.04 CI into one matrix job in ubuntu.yml and remove the dedicated ubuntu24.yml.
• Update publish_nuget.yml to download Ubuntu artifacts from ubuntu.yml (and add a linux-x64 artifact download step).
• Switch several packaging workflows (Ubuntu/Wasm/Linux ARM) to use a -beta version suffix during packing.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
.github/workflows/wasm.yml	Changes NuGet packing to use a -beta suffix.
.github/workflows/ubuntu24.yml	Removes the standalone Ubuntu 24.04 workflow (replaced by matrix).
.github/workflows/ubuntu.yml	Introduces a 22.04/24.04 matrix build and updates build/pack steps and artifact upload naming.
.github/workflows/publish_nuget.yml	Updates artifact downloads to point at ubuntu.yml and adds a linux-x64 artifact download step.
.github/workflows/linux-arm.yml	Changes NuGet packing to use a -beta suffix.

Comments suppressed due to low confidence (3)

.github/workflows/ubuntu.yml:26

• The matrix value ubuntu: "22.04"/"24.04" is later interpolated into the uploaded artifact name (artifacts_ubuntu_${{ matrix.ubuntu }}), which will produce names like artifacts_ubuntu_22.04. The publish workflow currently downloads artifacts_ubuntu_22 and artifacts_ubuntu_24, so either change matrix.ubuntu to match those names (e.g., 22/24) or update the publish workflow download names to include the full version string.
  .github/workflows/ubuntu.yml:173
• Setting BETA to -beta for the Ubuntu packages will cause the publish job’s OpenCvSharp.NupkgBetaRemover to take its if (nupkgFile.Contains("ubuntu")) branch, which does not remove the -beta prerelease suffix from the <version> in the nuspec. That means the pushed Ubuntu packages are likely to remain prerelease even after the rename step. Either keep BETA empty for the Ubuntu packages or update the beta-removal logic to strip -beta for Ubuntu packages too.
  .github/workflows/ubuntu.yml:190
• actions/upload-artifact is uploading artifacts_ubuntu_${{ matrix.ubuntu }}, but publish_nuget.yml downloads artifacts_ubuntu_22 and artifacts_ubuntu_24. Update this artifact name (or the publish downloads) so the publish workflow can reliably find both Ubuntu artifacts after merging the workflows.

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[Copilot]

The publish workflow downloads an artifacts_linux_x64 artifact from ubuntu.yml, but ubuntu.yml never uploads an artifact with that name (it currently uploads only artifacts_ubuntu_*). Either upload a distinct linux-x64 artifact from the Ubuntu matrix job, or remove/adjust this download step to match what the build workflow actually produces.

Suggested change

	- name: Download linux x64 artifact
	uses: dawidd6/action-download-artifact@v14
	with:
	github_token: ${{secrets.GITHUB_TOKEN}}
	workflow: ubuntu.yml
	name: artifacts_linux_x64
	branch: ${{ github.ref_name }}

[Copilot]

These download steps reference artifact names artifacts_ubuntu_22 / artifacts_ubuntu_24, but the merged ubuntu.yml workflow uploads artifacts_ubuntu_${{ matrix.ubuntu }} (currently 22.04 / 24.04). Align the downloaded artifact names with the ones being uploaded, otherwise the publish job will fail to download Ubuntu artifacts.