[all OSs] Add Python 3.14 to the toolcache

[erik-bershel]

Description

• It was added to actions/python-versions 3 days ago, so we are good to go.
• Also removing unused condition for toolset tests

Related issue:

Check list

• Related issue / work item is attached
• Tests are written (if applicable)
• Documentation is updated (if applicable)
• Changes are tested and related VM images are successfully generated

[Copilot]

Pull Request Overview

This PR adds Python 3.14 support to the toolcache across all operating systems (Windows, Ubuntu, and macOS). The change enables Python 3.14 to be available in GitHub Actions runner images.

• Added "3.14.*" version specification to Python toolsets across all OS configurations
• Updated toolset configurations for Windows (2019, 2022, 2025), Ubuntu (22.04, 24.04), and macOS (13, 14, 15, 26)
• Removed ARM64 skip condition from Ruby tests in macOS test suite

Reviewed Changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
images/windows/toolsets/toolset-2025.json	Added Python 3.14.* to Windows 2025 toolset
images/windows/toolsets/toolset-2022.json	Added Python 3.14.* to Windows 2022 toolset
images/windows/toolsets/toolset-2019.json	Added Python 3.14.* to Windows 2019 toolset
images/ubuntu/toolsets/toolset-2404.json	Added Python 3.14.* to Ubuntu 24.04 toolset
images/ubuntu/toolsets/toolset-2204.json	Added Python 3.14.* to Ubuntu 22.04 toolset
images/macos/toolsets/toolset-26.json	Added Python 3.14.* to macOS 26 toolset
images/macos/toolsets/toolset-15.json	Added Python 3.14.* to macOS 15 toolset for both x64 and arm64
images/macos/toolsets/toolset-14.json	Added Python 3.14.* to macOS 14 toolset for both x64 and arm64
images/macos/toolsets/toolset-13.json	Added Python 3.14.* to macOS 13 toolset for both x64 and arm64
images/macos/scripts/tests/Toolcache.Tests.ps1	Removed ARM64 skip condition from Ruby context tests

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