Allow more protobuf versions

[ValentaTomas]

• Allow protobuf 4.21.0+ (we previously allowed this, and some users in beta require this)
• Allow protobuf 6.0.0+ (some other users need to use the SDK with the latest versions)

The SDK should work with both of these, but we may want to smoke test it somehow.

[changeset-bot]

🦋 Changeset detected

Latest commit: 1562938

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@e2b/python-sdk	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[jakubno]

It doesn't work with 3.20.0, also it's long time outdated https://protobuf.dev/support/version-support/#python

ImportError while loading conftest '/Users/i/e2b/E2B/packages/python-sdk/tests/conftest.py'.
tests/conftest.py:9: in <module>
    from e2b import (
e2b/__init__.py:55: in <module>
    from .sandbox.filesystem.watch_handle import (
e2b/sandbox/filesystem/watch_handle.py:4: in <module>
    from e2b.envd.filesystem.filesystem_pb2 import EventType
e2b/envd/filesystem/filesystem_pb2.py:9: in <module>
    from google.protobuf import runtime_version as _runtime_version
E   ImportError: cannot import name 'runtime_version' from 'google.protobuf' (/Users/i/Library/Caches/pypoetry/virtualenvs/e2b-smSWSkw9-py3.11/lib/python3.11/site-packages/google/protobuf/__init__.py)