fix(deps): update protobuf monorepo to v4 (major)

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
com.google.protobuf:protoc (source)	3.25.8 -> 4.33.1
com.google.protobuf:protobuf-kotlin (source)	3.25.8 -> 4.33.1

---

Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

---

Release Notes

protocolbuffers/protobuf (com.google.protobuf:protoc)

v4.31.1

v4.31.0

v4.30.2

v4.30.1

---

Configuration

📅 Schedule: Branch creation - Between 12:00 AM and 03:59 AM, only on Monday ( * 0-3 * * 1 ) (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about these updates again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 76.76%. Comparing base (78e7fcb) to head (2c82ace).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #927      +/-   ##
==========================================
- Coverage   77.30%   76.76%   -0.54%     
==========================================
  Files         103       90      -13     
  Lines        3573     2961     -612     
  Branches      303      242      -61     
==========================================
- Hits         2762     2273     -489     
+ Misses        643      561      -82     
+ Partials      168      127      -41     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.