Update mypy-protobuf requirement from <4,>=3.0.0 to >=3.0.0,<5#489

Marenz merged 2 commits into

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dependabot/pip/mypy-protobuf-gte-3.0.0-and-lt-5frequenz-floss/frequenz-repo-config-python:dependabot/pip/mypy-protobuf-gte-3.0.0-and-lt-5Copy head branch name to clipboard