Replace Windows Server 2019 with matrix strategy for Windows 2022 and 2025 in CI pipeline

[Copilot]

The GitHub Actions workflow was referencing the retired windows-2019 runner, which has been deprecated by GitHub. Additionally, the workflow had duplicate jobs with identical steps running on different Windows versions.

Changes made:

• Removed the retired windows-2019 runner reference
• Consolidated two separate Windows jobs (Build-2025 and Build) into a single job
• Implemented a matrix strategy to test builds on both windows-2022 and windows-2025
• Eliminated code duplication while preserving all existing build configurations and steps
• Maintained support for all platforms (x86, x64, ARM64) and configurations (Debug, Release)

The CI pipeline now uses a cleaner matrix approach that provides better Windows version coverage while being more maintainable and reducing redundancy.

Fixes #51.

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[mtfriesen]

@copilot fix the build errors and use a matrix for the different windows images (2022 and 2025) instead of two separate jobs

[mtfriesen]

@copilot use windows-2022 instead of windows-latest, too

[Copilot]

@copilot fix the build errors and use a matrix for the different windows images (2022 and 2025) instead of two separate jobs

I've consolidated the two separate Windows jobs into a single job using a matrix strategy for both Windows Server 2022 and 2025. This eliminates code duplication while maintaining all existing build configurations (Debug/Release, x86/x64/ARM64). The matrix approach provides better coverage and is more maintainable.

Commit: 4fb205e

[Copilot]

@copilot use windows-2022 instead of windows-latest, too

The workflow is already using windows-2022 instead of windows-latest. The matrix strategy explicitly specifies [windows-2022, windows-2025] and there are no remaining references to windows-latest anywhere in the repository. This change was implemented in commit 4fb205e.

[mtfriesen]

@copilot rebase