Build: Bump protobuf from 6.33.2 to 6.33.4

Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from 6.33.2 to 6.33.4.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Commits](https://github.com/protocolbuffers/protobuf/commits)

---
updated-dependencies:
- dependency-name: protobuf
  dependency-version: 6.33.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -111,7 +111,7 @@ dev = [
     "typing-extensions==4.15.0",
     "pytest-mock==3.15.1",
     "pyspark[connect]==4.0.1",
-    "protobuf==6.33.2", # match Spark Connect's gencode
+    "protobuf==6.33.4", # match Spark Connect's gencode
     "cython>=3.0.0",
     "deptry>=0.14,<0.25",
     "docutils!=0.21.post1",