[backport] Remove ceiling for types-protobuf

[yuandrew]

What was changed

Why?

Originally added to pass CI, but this breaks users who use a higher version

Checklist

1. Closes

2. How was this tested:

3. Any docs updates needed?

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Note

Low Risk
Low risk dependency metadata change; it only adjusts version constraints and should not affect runtime behavior beyond allowing newer types-protobuf versions and pinning setuptools for dev installs.

Overview
Removes the previously tight upper bound on types-protobuf by aligning it with the protobuf constraint (>=3.20,<7.0.0), avoiding conflicts for users on newer stub releases.

Also adds a dev-only pin setuptools<82 to stabilize the development/test environment.

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