chore: remove pin for types-protobuf to support 3.14

[ohmayr]

This is required to support running mypy with the latest version of Python i.e. 3.14

[gemini-code-assist]

Summary of Changes

Hello @ohmayr, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request updates a dependency specification to resolve a compatibility issue, enabling the mypy type checker to function correctly with Python 3.14. By removing a specific version pin, the project can now leverage newer versions of a type-related package, ensuring broader compatibility and support for modern Python environments.

Highlights

• Dependency Update: The version pin for types-protobuf has been removed from <=3.19.7 to allow for newer versions.
• Python 3.14 Compatibility: This change is essential to ensure mypy can run correctly with the latest Python version, 3.14.

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[gemini-code-assist]

Code Review

This pull request removes the version pin for types-protobuf to support Python 3.14. The change is logical, but to improve future maintainability, I've suggested adding an inline comment to document the reason for unpinning this dependency. This provides helpful context for other developers.

[gemini-code-assist]

While removing the pin is necessary, it's good practice to document why a dependency is unpinned, especially when it was pinned before. This provides context for future maintainers. An inline comment would be a great addition here.

Suggested change

	"types-protobuf",
	"types-protobuf", # Unpinned to support Python 3.14+