chore(deps): bump protobuf from 6.30.2 to 6.31.1

Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from 6.30.2 to 6.31.1.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](protocolbuffers/protobuf@v6.30.2...v6.31.1)

---
updated-dependencies:
- dependency-name: protobuf
  dependency-version: 6.31.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -5,7 +5,7 @@ spacy==3.7.5
 pydantic==2.11.4
 Pillow==11.2.1
 sentencepiece==0.2.0
-protobuf==6.30.2
+protobuf==6.31.1
 pytesseract==0.3.13
 aiohttp==3.11.18
 numpy==1.26.4