Testing 3.14 python compability

[PiotrPich2024]

This pull request updates the project to add support for Python 3.14. The changes ensure that the project is recognized as compatible with Python 3.14 and that wheels for this version are built during the CI process.

Python 3.14 support:

• Added "Programming Language :: Python :: 3.14" to the classifiers list in pyproject.toml to indicate official support for Python 3.14.
• Included cp314-* in the build list under [tool.cibuildwheel] in pyproject.toml so that wheels for Python 3.14 are built in CI.

[grzanka]

It seems thiss needs the confict to be resolved

[Copilot]

Pull request overview

Updates packaging/CI metadata to start testing/building against Python 3.14, and tweaks the Windows vcpkg setup to mitigate registry-cache issues during dependency installation.

Changes:

• Add Python 3.14 Trove classifier in pyproject.toml.
• Extend cibuildwheel build selectors to include cp314-*.
• Clear the vcpkg registry cache in the Windows dependency bootstrap script.

Reviewed changes

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

File	Description
scripts/build_gsl.ps1	Adds a step to remove the vcpkg registries cache before restoring/installing vcpkg.
pyproject.toml	Declares Python 3.14 support and enables cibuildwheel builds for CPython 3.14.

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[Copilot]

This script unconditionally deletes the user-wide vcpkg registries cache under $env:LOCALAPPDATA. That’s a surprising side effect for a repo build script (it can disrupt other vcpkg-based projects on the same machine) and it also removes any caching benefit, increasing network usage and build time. Consider scoping this to CI-only (e.g., guard on $env:CI / $env:GITHUB_ACTIONS) or making it opt-in via an environment variable, and handle potential deletion failures explicitly (try/catch or -ErrorAction) so a locked file doesn’t cause unpredictable behavior.

Suggested change

	# Clear stale registry cache
	$registryCache = "$env:LOCALAPPDATA\vcpkg\registries"
	if (Test-Path $registryCache) {
	Write-Output "Clearing vcpkg registry cache..."
	Remove-Item -Recurse -Force $registryCache
	# Clear stale registry cache only in CI or when explicitly requested
	$registryCache = "$env:LOCALAPPDATA\vcpkg\registries"
	$shouldClearRegistryCache = [System.Convert]::ToBoolean($env:CI) -or `
	[System.Convert]::ToBoolean($env:GITHUB_ACTIONS) -or `
	[System.Convert]::ToBoolean($env:VCPKG_CLEAR_REGISTRY_CACHE)
	if ($shouldClearRegistryCache -and (Test-Path $registryCache)) {
	Write-Output "Clearing vcpkg registry cache..."
	try {
	Remove-Item -Recurse -Force -ErrorAction Stop $registryCache
	}
	catch {
	Write-Warning "Failed to clear vcpkg registry cache at '$registryCache': $($_.Exception.Message)"
	}