fix(deps): update dependency protobuf to v7

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
protobuf	==6.33.5 → ==7.34.1

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: uv.lock

Command failed: uv lock --upgrade-package protobuf --upgrade-package protobuf
Using CPython 3.14.3 interpreter at: /opt/containerbase/tools/python/3.14.3/bin/python3
  × No solution found when resolving dependencies:
  ╰─▶ Because grpcio-tools==1.78.0 depends on protobuf>=6.31.1,<7.0.0 and
      your project depends on grpcio-tools==1.78.0, we can conclude that your
      project depends on protobuf>=6.31.1,<7.0.0.
      And because your project depends on protobuf==7.34.1, we can conclude
      that your project's requirements are unsatisfiable.