Bump protobufjs from 6.11.2 to 6.11.3 in /extension/functions

Bumps [protobufjs](https://github.com/protobufjs/protobuf.js) from 6.11.2 to 6.11.3.
- [Release notes](https://github.com/protobufjs/protobuf.js/releases)
- [Changelog](https://github.com/protobufjs/protobuf.js/blob/v6.11.3/CHANGELOG.md)
- [Commits](protobufjs/protobuf.js@v6.11.2...v6.11.3)

---
updated-dependencies:
- dependency-name: protobufjs
  dependency-type: indirect
...

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Author: dependabot[bot]