Bump protobuf from 3.20 to 7.34.1

Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from 3.20 to 7.34.1.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Commits](https://github.com/protocolbuffers/protobuf/commits)

---
updated-dependencies:
- dependency-name: protobuf
  dependency-version: 7.34.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pyproject.toml

@@ -37,7 +37,7 @@ dependencies = [
     "astropy >= 7.2.0",
     "astroquery >= 0.4.11",
     "numpy >= 2.3.5",
-    "protobuf == 3.20",
+    "protobuf == 7.34.1",
     "pytz >= 2025.2",
     "scipy >= 1.16.3",
     "spectral-cube >= 0.6.7",