Updates 'spfx project github workflow add' sppkg path resolution

[milanholemans]

Closes #7233

Also updated the dependencies to the latest version.

[Copilot]

Pull request overview

This PR updates the SPFx project github workflow add command to generate a GitHub Actions workflow using the .sppkg output path from config/package-solution.json, instead of assuming the package name matches the project name, and refreshes the workflow action dependencies.

Changes:

• Read paths.zippedPackage from config/package-solution.json and use it to populate APP_FILE_PATH in the generated workflow.
• Update the workflow template to newer action versions and replace {{ solutionName }} with {{ sppkgPath }}.
• Update unit test stubs to account for the additional package-solution.json read.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 6 comments.

File	Description
src/m365/spfx/commands/project/project-github-workflow-add.ts	Reads package-solution.json and substitutes {{ sppkgPath }} into the workflow’s APP_FILE_PATH.
src/m365/spfx/commands/project/project-github-workflow-add.spec.ts	Updates filesystem stubs to include config/package-solution.json.
src/m365/spfx/commands/project/DeployWorkflow.ts	Updates action versions and changes workflow template token to {{ sppkgPath }} for deploy package path.