build(deps-dev): bump protobuf from 4.23.4 to 5.26.1

Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from 4.23.4 to 5.26.1.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](https://github.com/protocolbuffers/protobuf/compare/v4.23.4...v5.26.1)

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

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

pyproject.toml

@@ -49,7 +49,7 @@ dependencies = [
     "dnfile==0.14.1",
     "dncil==1.0.2",
     "pydantic==2.7.1",
-    "protobuf==4.23.4",
+    "protobuf==5.26.1",
 ]
 dynamic = ["version"]