Add Copilot environment and instructions

[astafan8]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 59.29%. Comparing base (723059d) to head (7971139).
Report is 7 commits behind head on main.

Additional details and impacted files

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##             main    #7298   +/-   ##
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  Coverage   59.29%   59.29%           
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  Files         340      340           
  Lines       30737    30737           
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  Hits        18226    18226           
  Misses      12511    12511           

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[Copilot]

Pull Request Overview

This PR adds GitHub Copilot setup configuration to enable Copilot assistance for the QCoDeS Python library project. The changes include both the automated workflow setup and project-specific instructions to guide Copilot's behavior.

• Creates a GitHub Actions workflow that sets up the Python environment with all necessary dependencies
• Adds project-specific instructions to help Copilot understand QCoDeS development practices and tooling

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
.github/workflows/copilot-setup-steps.yml	Defines the automated setup workflow for Copilot with Python environment, dependencies, and tooling installation
.github/copilot-instructions.md	Provides project-specific guidance for Copilot including development practices, tooling, and code standards