Fix: Rename job to copilot-setup-steps in workflow file

[Copilot]

Problem

The copilot-setup-steps.yml workflow file contained a job named setup-environment instead of the required copilot-setup-steps. This caused GitHub Copilot Actions to fail with the error:

No copilot-setup-steps job found in your copilot-setup-steps.yml workflow file. Please ensure you have a single job named copilot-setup-steps.

Solution

Renamed the job from setup-environment to copilot-setup-steps to match the GitHub Copilot Actions specification requirements.

Changes

• File: .github/workflows/copilot-setup-steps.yml
• Change: Line 14 - Renamed job from setup-environment to copilot-setup-steps

The workflow functionality remains completely intact with all existing steps preserved:

• .NET Core setup with global.json configuration
• NuGet package caching for faster builds
• Project restore and build
• Test execution
• Docker Buildx setup
• Node.js setup for frontend development
• EF Core tools installation

This minimal change ensures the workflow meets GitHub Copilot's naming requirements while maintaining all existing functionality for setting up the development environment.

Validation

• ✅ YAML syntax validation passed
• ✅ Only 1 line changed (minimal modification)
• ✅ All workflow steps and functionality preserved

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[Copilot]

@BenjaminMichaelis Unfortunately, I hit an error while trying to use the custom Copilot setup steps configured for this repository and had to close this PR. The error I am seeing is:

No `copilot-setup-steps` job found in your `copilot-setup-steps.yml` workflow file. Please ensure you have a single job named `copilot-setup-steps`. For more details, see https://gh.io/copilot/actions-setup-steps.

Once you or someone with the necessary access fixes the problem, please unassign and then reassign issue #0 to me and I'll retry. Thanks!